Anti-gram-positive bacterial methods and materials

ABSTRACT

The present invention relates to methods of treating gram-positive bacterial infections by administration of a BPI protein product alone, or in combination with an antibiotic. BPI protein product alone has a bactericidal or growth inhibitory effect on selected gram-positive organisms. BPI protein product also increases the susceptibility of gram-positive organisms to antibiotics and can even reverse resistance of gram-positive organisms to antibiotic.

This is a continuation-in-part of U.S. patent application Ser. No. 08/274,299 filed Jul. 11, 1994, which is a continuation-in-part of U.S. patent application Ser. No. 08/209,762 filed Mar. 11, 1994, which is a continuation-in-part of U.S. patent application Ser. No. 08/183,222 filed Jan. 14, 1994, abandoned all of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION

The present invention relates generally to methods and materials for treating gram-positive bacterial infections by administration of bactericidal/permeability-increasing (BPI) protein products alone, or in combination with antibiotic substances. Also disclosed are analogous methods and materials involving use of lipopolysaccharide binding protein (LBP) derivatives.

BPI is a protein isolated from the granules of mammalian polymorphonuclear leukocytes (PMNs or neutrophils), which are blood cells essential in the defense against invading microorganisms. Human BPI protein has been isolated from PMNs by acid extraction combined with either ion exchange chromatography [Elsbach, J. Biol. Chem., 254: 11000 (1979)] or E. coli affinity chromatography [Weiss, et al., Blood, 69: 652 (1987)]. BPI obtained in such a manner is referred to herein as natural BPI and has been shown to have potent bactericidal activity against a broad spectrum of gram-negative bacteria. The molecular weight of human BPI is approximately 55,000 daltons (55 kD). The amino acid sequence of the entire human BPI protein and the nucleic acid sequence of DNA encoding the protein have been reported in FIG. 1 of Gray et at., J. Biol. Chem., 264: 9505 (1989), incorporated herein by reference. The Gray et al. amino acid sequence is set out in SEQ ID NO: 69 hereto.

BPI is a strongly cationic protein. The N-terminal half of BPI accounts for the high net positive charge; the C-terminal half of the molecule has a net charge of -3. [Elsbach and Weiss (1981), supra.] A proteolytic N-terminal fragment of BPI having a molecular weight of about 25 kD has an amphipathic character, containing alternating hydrophobic and hydrophilic regions. This N-terminal fragment of human BPI possesses the anti-bacterial efficacy of the naturally-derived 55 kD human BPI holoprotein. [Ooi et al., J. Bio. Chem., 262: 14891-14894 (1987)]. In contrast to the N-terminal portion, the C-terminal region of the isolated human BPI protein displays only slightly detectable anti-bacterial activity against gram-negative organisms. [Ooi et al., J. Exp. Med., 174: 649 (1991).] An N-terminal BPI fragment of approximately 23 kD, referred to as "rBPI₂₃," has been produced by recombinant means and also retains anti-bacterial activity against gram-negative organisms. Gazzano-Santoro et al., Infect. Immun. 60: 4754-4761 (1992).

The bactericidal effect of BPI has been reported to be highly specific to gram-negative species, e.g., in Elsbach and Weiss, Inflammation: Basic Principles and Clinical Correlates, eds. Gallin et al., Chapter 30, Raven Press, Ltd. (1992). BPI is commonly thought to be non-toxic for other microorganisms, including yeast, and for higher eukaryotic cells. Elsbach and Weiss (1992), supra, reported that BPI exhibits anti-bacterial activity towards a broad range of gram-negative bacteria at concentrations as low as 10⁻⁸ to 10⁻⁹ M, but that 100- to 1,000-fold higher concentrations of BPI were non-toxic to all of the gram-positive bacterial species, yeasts, and higher eukaryotic cells tested at that time. It was also reported that BPI at a concentration of 10⁻⁶ M or 160 μg/ml had no toxic effect, when tested at a pH of either 7.0 or 5.5, on the gram-positive organisms Staphylococcus aureus (four strains), Staphylococcus epidermidis, Streptococcus faecalis, Bacillus subtilis, Micrococcus lysodeikticus, and Listeria monocytogenes. BPI at 10⁻⁶ M reportedly had no toxic effect on the fungi Candida albicans and Candida parapsilosis at pH 7.0 or 5.5, and was non-toxic to higher eukaryotic cells such as human, rabbit and sheep red blood cells and several human tumor cell lines. See also Elsbach and Weiss, Advances in Inflammation Research, ed. G. Weissmann, Vol. 2, pages 95-113 Raven Press (1981). This reported target cell specificity was believed to be the result of the strong attraction of BPI for lipopolysaccharide (LPS), which is unique to the outer membrane (or envelope) of gram-negative organisms.

The precise mechanism by which BPI kills gram-negative bacteria is not yet completely elucidated, but it is believed that BPI must first bind to the surface of the bacteria through electrostatic and hydrophobic interactions between the cationic BPI protein and negatively charged sites on LPS. LPS has been referred to as "endotoxin" because of the potent inflammatory response that it stimulates, i.e., the release of mediators by host inflammatory cells which may ultimately result in irreversible endotoxic shock. BPI binds to lipid A, reported to be the most toxic and most biologically active component of LPS.

In susceptible gram-negative bacteria, BPI binding is thought to disrupt LPS structure, leading to activation of bacterial enzymes that degrade phospholipids and peptidoglycans, altering the permeability of the cell's outer membrane, and initiating events that ultimately lead to cell death. [Elsbach and Weiss (1992), supra]. BPI is thought to act in two stages. The first is a sublethal stage that is characterized by immediate growth arrest, permeabilization of the outer membrane and selective activation of bacterial enzymes that hydrolyze phospholipids and peptidoglycans. Bacteria at this stage can be rescued by growth in serum albumin supplemented media [Mannion et al., J. Clin. Invest., 85: 853-860 (1990)]. The second stage, defined by growth inhibition that cannot be reversed by serum albumin, occurs after prolonged exposure of the bacteria to BPI and is characterized by extensive physiologic and structural changes, including apparent damage to the inner cytoplasmic membrane.

Initial binding of BPI to LPS leads to organizational changes that probably result from binding to the anionic groups in the KDO region of LPS, which normally stabilize the outer membrane through binding of Mg⁺⁺ and Ca⁺⁺. Attachment of BPI to the outer membrane of gram-negative bacteria produces rapid permeabilization of the outer membrane to hydrophobic agents such as actinomycin D. Binding of BPI and subsequent gram-negative bacterial killing depends, at least in part, upon the LPS polysaccharide chain length, with long O-chain bearing, "smooth" organisms being more resistant to BPI bactericidal effects than short O-chain bearing, "rough" organisms [Weiss et al., J. Clin. Invest. 65: 619-628 (1980)]. This first stage of BPI action, permeabilization of the gram-negative outer envelope, is reversible upon dissociation of the BPI, a process requiring the presence of divalent cations and synthesis of new LPS [Weiss et al., J. Immunol. 132: 3109-3115 (1984)]. Loss of gram-negative bacterial viability, however, is not reversed by processes which restore the envelope integrity, suggesting that the bactericidal action is mediated by additional lesions induced in the target organism and which may be situated at the cytoplasmic membrane (Mannion et al., J. Clin. Invest. 86: 631-641 (1990)). Specific investigation of this possibility has shown that on a molar basis BPI is at least as inhibitory of cytoplasmic membrane vesicle function as polymyxin B (In't Veld et al., Infection and Immunity 56: 1203-1208 (1988)) but the exact mechanism as well as the relevance of such vesicles to studies of intact organisms has not yet been elucidated.

BPI is also capable of neutralizing the endotoxic properties of LPS to which it binds. Because of its bactericidal properties for gram-negative organisms and its ability to neutralize LPS, BPI can be utilized for the treatment of mammals suffering from diseases caused by gram-negative bacteria, such as bacteremia or sepsis.

U.S. Pat. No. 5,198,541 discloses recombinant genes encoding and methods for expression of BPI proteins, including BPI holoprotein and fragments of BPI. It also describes the use of N-terminal fragments of BPI protein for co-treatment of gram-negative bacterial diseases with certain antibiotics, specifically penicillin, cephalosporins, rifampicin and actinomycin D.

Antibiotics are natural chemical substances of relatively low molecular weight produced by various species of microorganisms, such as bacteria (including Bacillus species), actinomycetes (including Streptomyces) and fungi, that inhibit growth of or destroy other microorganisms. Substances of similar structure and mode of action may be synthesized chemically, or natural compounds may be modified to produce semi-synthetic antibiotics. These biosynthetic and semi-synthetic derivatives are also effective as antibiotics. The major classes of antibiotics are (1) the β-lactams, including the penicillins, cephalosporins and monobactams; (2) the aminoglycosides, e.g., gentamicin, tobramycin, netilmycin, and amikacin; (3) the tetracyclines; (4) the sulfonamides and trimethoprim; (5) the fluoroquinolones, e.g., ciprofloxacin, norfloxacin, and ofloxacin; (6) vancomycin; (7) the macrolides, which include for example, erythromycin, azithromycin, and clarithromycin; and (8)other antibiotics, e.g., the polymycins, chloramphenicol and the lincosamides.

Antibiotics accomplish their anti-bacterial effect through several mechanisms of action which can be generally grouped as follows: (1) agents acting on the bacterial cell wall such as bacitracin, the cephalosporins, cycloserine, fosfomycin, the penicillins, ristocetin, and vancomycin; (2) agents affecting the cell membrane or exerting a detergent effect, such as colistin, novobiocin and polymyxins; (3) agents affecting cellular mechanisms of replication, information transfer, and protein synthesis by their effects on ribosomes, e.g., the aminoglycosides, the tetracyclines, chloramphenicol, clindamycin, cycloheximide, fucidin, lincomycin, puromycin, rifampicin, other streptomycins, and the macrolide antibiotics such as erythromycin and oleandomycin; (4) agents affecting nucleic acid metabolism, e.g., the fluoroquinolones, actinomycin, ethambutol, 5-fluorocytosine, griseofulvin, rifamycins; and (5) drugs affecting intermediary metabolism, such as the sulfonamides, trimethoprim, and the tuberculostatic agents isoniazid and para-aminosalicylic acid. Some agents may have more than one primary mechanism of action, especially at high concentrations. In addition, secondary changes in the structure or metabolism of the bacterial cell often occur after the primary effect of the antimicrobial drug.

The penicillins have a characteristic double-ring system composed of a β-lactam ring, which provides the antibacterial activity, and a thiazolidene ring. The penicillins are differentiated by a single side chain that is unique for each penicillin. The compounds are bactericidal and act by inhibiting bacterial transpeptidase, an enzyme involved in synthesis of the bacterial cell wall. Because of their mechanism of action, penicillins are generally active against growing, but not resting, cells. Penicillins, especially penicillin G, have largely gram-positive activity; the relative insensitivity of gram-negative rods to penicillin G and several other penicillins is probably due to the permeability barrier of the outer membrane of gram-negative bacteria. Ampicillin, carbenicillin, ticarcillin, and some other penicillins are active against gram-negative bacteria because they can pass through this outer membrane. Penicillins have relatively few adverse effects, the most important of which are the hypersensitivity (allergic) reactions. These compounds are widely distributed in the body, but do not enter cells and do not usually accumulate in CSF.

Bacterial resistance to the penicillins is by production of the enzyme β-lactamase, which catalyzes hydrolysis of the β-lactam ring. The percentage of bacteria resistant to penicillin has risen to about 80%. Several penicillins, including methicillin, oxacillin, cloxacillin, dicloxacillin and nafcillin, are not affected by the β-lactamase of staphylococci. These antibiotics are useful against most β-lactamase-producing species of Staphylococcus. However, a small number of species are resistant even to these penicillins. Some penicillins, amoxicillin and ticarcillin, are marketed in combination with clavulanic acid, which is a β-lactamase inhibitor that covalently binds to the enzyme and prevents it from hydrolyzing the antibiotics. Another inhibitor, sulbactam, is marketed in combination with ampicillin.

The cephalosporins are characterized by a β-lactam ring, like the penicillins, but have an adjacent dihydrothiazine ring instead of a thiazolidene ring. For convenience, these compounds are generally classified by generations. The first generation includes cephalothin, cephapirin, cefazolin, cephalexin, cephradine and cefadroxil. These drugs generally have excellent gram-positive activity except for enterococci and methicillin-resistant staphylococci, and have only modest gram-negative coverage. The second generation includes cefamandole, cefoxitin, ceforanide, cefuroxime, cefuroxime axetil, cefaclor, cefonicid and cefotetan. This generation generally loses some gram-positive activity by weight and gains limited gram-negative coverage. The third generation includes cefotaxime, moxalactam, ceftizoxime, ceftriaxone, cefoperazone and ceftazidime. These compounds generally sacrifice further gram-positive activity by weight but gain substantial gram-negative coverage against Enterobacter and sometimes are active against Pseudoraonas. The cephalosporins bind to penicillin-binding proteins with varying affinity. Once binding occurs, protein synthesis is inhibited. Cephalosporins are usually well tolerated; adverse effects include hypersensitivity reactions and gastrointestinal effects. Cephalosporins may interact with nephrotoxic drugs, particularly aminoglycosides, to increase toxicity. Resistance to cephalosporins is mediated by several mechanisms, including production of β-lactamase, although some strains that do not produce β-lactamase are nevertheless resistant.

Imipenem is a N-formimidoyl derivative of the mold product thienamycin. It contains a β-lactam ring and somewhat resembles penicillin except for differences in the second ring. It has activity against both gram-positive and gram-negative organisms and is resistant to most β-lactamases, although not those from Pseudomonas. It is marketed in combination with cilastin, a compound that inhibits inactivation of imipenem in the kidney by renal dihydropeptidase I enzyme. Cilastin increases the concentration of imipenem in urine, although not in blood.

Aztreonam is the first of a new group of antibiotics referred to as the monobactams. These agents have a β-lactam ring but lack the second ring characteristic of the penicillins and cephalosporins. It acts by binding to penicillin-binding proteins, and produces long, filamentous bacterial shapes that eventually lyse. Aztreonam is active only against aerobic gram-negative bacteria, is susceptible to inactivation by some β-lactamases, and has few adverse effects.

The aminoglycosides contain amino sugars linked to an aminocyclitol ring by glycosidic bonds. They have similar mechanisms of action and properties, but differ somewhat in spectrum of action, toxicity, and susceptibility to bacterial resistance. The compounds are bactericidal, with activity against both gram-positive and gram-negative organisms, and act by binding to proteins on the 30S ribosome of bacteria and inhibiting protein synthesis. The aminoglycosides also bind to isolated LPS and have a very weak outer membrane permeabilizing effect. [Taber et at., Microbiological Reviews 53: 439-457 (1987)); Kadurugamuwa et al., Antmicrobial Agents and Chemotherapy, 37: 715-721 (1993); Vaara, Microbiological Reviews 56: 395-411 (1992)]. This class of antibiotics includes amikacin, gentamicin, kanamycin, neomycin, netilmycin, paromomycin and tobramycin. The aminoglycosides are usually reserved for more serious infections because of severe adverse effects including ototoxicity and nephrotoxicity. There is a narrow therapeutic window between the concentration required to produce a therapeutic effect, e.g., 8 μg/ml for gentamicin, and the concentration that produces a toxic effect, e.g., 12 μg/ml for gentamicin. Neomycin in particular is highly toxic and is never administered parenterally.

Tetracyclines have a common four-ring structure and are closely congeneric derivatives of the polycyclic naphthacenecarboxamide. The compounds are bacteriostatic, and inhibit protein synthesis by binding to the 30S subunit of microbial ribosomes and interfering with attachment of aminoacyl tRNA. The compounds have some activity against both gram-positive and gram-negative bacteria; however, their use is limited because many species are now relatively resistant. Adverse effects include gastrointestinal effects, hepatotoxicity with large doses, and nephrotoxicity in some patients. This antibiotic class includes tetracycline, chlortetracycline, demeclocycline, doxycycline, methacycline, minocycline and oxytetracycline.

The sulfonamides are derivatives of sulfanilamide, a compound similar in structure to para-aminobenzoic acid (PABA), which is an essential precursor for bacterial synthesis of folic acid. The compounds are generally bacteriostatic, and act by competitively inhibiting incorporation of PABA into tetrahydrofolic acid, which is a required cofactor in the synthesis of thymidines, purines and DNA. Sulfonamides have a wide range of activity against gram-positive and gram-negative bacteria, but their usefulness has diminished with increasingly high prevalence of bacterial resistance. The sulfonamide class of antibiotics includes sulfacytine, sulfadiazine, sulfamethizole, sulfisoxazole, sulfamethoxazole, sulfabenzamide and sulfacetamide. Adverse effects include hypersensitivity reactions and occasional hematological toxicity.

Trimethoprim is an inhibitor of the dihydrofolate reductase enzyme, which converts dihydrofolic to tetrahydrofolic acid, a required factor for DNA synthesis. Adverse effects include gastrointestinal distress and rare hematological toxicity. Trimethoprim is also available in combination with sulfamethoxazole (also known as co-trimoxazole). The combination is usually bactericidal, although each agent singly is usually bacteriostatic. The combination is the drug of choice for Salmonella infections, some Shigella infections, E. coli traveler's diarrhea and Pneumocystis carinii pneumonia.

The fluoroquinolones and quinolones are derivatives of nalidixic acid, a naphthyridine derivative. These compounds are bactericidal, and impair DNA replication, transcription and repair by binding to the DNA and interfering with DNA gyrase, an enzyme which catalyzes negative supercoiling of DNA. The fluoroquinolones, which include norfloxacin, ciprofloxacin, and ofloxacin, and the quinolones, which include cinoxacin, have a broad spectrum of antimicrobial activity against gram-negative and gram-positive organisms. These compounds distribute widely through extravascular tissue sites, have a long serum half-life, and present few adverse effects. Because of their effect on DNA, the drugs are contraindicated in pregnant patients and in children whose skeletal growth is incomplete.

Vancomycin is a glycopeptide, with a molecular weight of about 1500, produced by a fungus. It is primarily active against gram-positive bacteria. The drug inhibits one of the final steps in synthesis of the bacterial cell wall, and is thus effective only against growing organisms. It is used to treat serious infections due to gram-positive cocci when penicillin G is not useful because of bacterial resistance or patient allergies. Vancomycin has two major adverse effects, ototoxicity and nephrotoxicity. These toxicities can be potentiated by concurrent administration of another drug with the same adverse effect, such as an aminoglycoside.

The macrolides are bacteriostatic and act by binding to the 50S subunit of 70S ribosomes, resulting in inhibition of protein synthesis. They have a broad spectrum of activity against gram-positive and gram-negative bacteria and may be bacteriostatic or bactericidal, depending on the concentration achieved at sites of infection. The compounds distribute widely in body fluids. Adverse effects include gastrointestinal distress and rare hypersensitivity reactions. The most common macrolide used is erythromycin, but the class includes other compounds such as clarithromycin and azithromycin.

The polymyxins are a group of closely related antibiotic substances produced by strains of Bacillus polymyxa. These drugs, which are cationic detergents, are relatively simple, basic peptides with molecular weights of about 1000. Their antimicrobial activity is restricted to gram-negative bacteria. They interact strongly with phospholipids and act by penetrating into and disrupting the structure of cell membranes. Polymyxin B also binds to the lipid A portion of endotoxin and neutralizes the toxic effects of this molecule. Polymyxin B has severe adverse effects, including nephrotoxicity and neurotoxicity, and should not be administered concurrently with other nephrotoxic or neurotoxic drugs. The drug thus has limited use as a therapeutic agent because of high systemic toxicity, but may be used for severe infections, such as Pseudomonas aeruginosa meningitis, that respond poorly to other antibiotics.

Chioramphenicol inhibits protein synthesis by binding to the 50S ribosomal subunit and preventing binding of aminoacyl tRNA. It has a fairly wide spectrum of antimicrobial activity, but is only reserved for serious infections, such as meningitis, typhus, typhoid fever, and Rocky Mountain spotted fever, because of its severe and fatal adverse hematological effects. It is primarily bacteriostatic, although it may be bactericidal to certain species.

Lincomycin and clindamycin are lincosamide antimicrobials. They consist of an amino acid linked to an amino sugar. Both inhibit protein synthesis by binding to the 50S ribosomal subunit. They compete with erythromycin and chloramphenicol for the same binding site but in an overlapping fashion. They may be bacteriostatic or bactericidal, depending on relative concentration and susceptibility. Gastrointestinal distress is the most common side effect. Other adverse reactions include cutaneous hypersensitivity, transient hematological abnormalities, and minor elevations of hepatic enzymes. Clindamycin is often the drug of choice for infections caused by anaerobic bacteria or mixed aerobic/anaerobic infections, and can also be used for susceptible aerobic gram-positive cocci.

Some drugs, e.g. aminoglycosides, have a small therapeutic window. For example, 2 to 4 μg/ml of gentamicin or tobramycin may be required for inhibition of bacterial growth, but peak concentrations in plasma above 6 to 10 μg/ml may result in ototoxicity or nephrotoxicity. These agents are more difficult to administer because the ratio of toxic to therapeutic concentrations is very low. Antimicrobial agents that have toxic effects on the kidneys and that are also eliminated primarily by the kidneys, such as the aminoglycosides or vancomycin, require particular caution because reduced elimination can lead to increased plasma concentrations, which in turn may cause increased toxicity. Doses of antimicrobial agents that are eliminated by the kidneys must be reduced in patients with impaired renal function. Similarly, dosages of drugs that are metabolized or excreted by the liver, such as erythromycin, chloramphenicol, or clindamycin, must be reduced in patients with decreased hepatic function.

Antibiotic resistance in bacteria is an increasingly troublesome problem. The accelerating development of antibiotic-resistant bacteria, intensified by the widespread use of antibiotics in farm animals and overprescription of antibiotics by physicians, has been accompanied by declining research into new antibiotics with different modes of action. [Science, 264: 360-374 (1994).]Antibiotic resistance, once acquired, can be rapidly spread to other bacteria, including bacteria of a different species. There are some species of bacteria that are resistant to all but one antibiotic; it may be only a matter of time before the appearance of bacterial strains that are resistant to all antibiotics.

Bacteria acquire resistance to antibiotics through several mechanisms: (1) production of enzymes that destroy or inactivate the antibiotic [Davies, Science, 264: 375-381 (1994)]; (2) synthesis of new or altered target sites on or within the cell that are not recognized by the antibiotic [Spratt, Science, 264: 388-393 (1994)]; (3) low permeability to antibiotics, which can be reduced even further by altering cell wall proteins, thus restricting access of antibiotics to the bacterial cytoplasmic machinery; (4) reduced intracellular transport of the drug; and (5) increased removal of antibiotics from the cell via membrane-associated pumps [Nikaido, Science, 264: 382-387 (1994)].

The susceptibility of a bacterial species to an antibiotic is generally determined by two microbiological methods. A rapid but crude procedure uses commercially available filter paper disks that have been impregnated with a specific quantity of the antibiotic drug. These disks are placed on the surface of agar plates that have been streaked with a culture of the organism being tested, and the plates are observed for zones of growth inhibition. A more accurate technique, the broth dilution susceptibility test, involves preparing test tubes containing serial dilutions of the drug in liquid culture media, then inoculating the organism being tested into the tubes. The lowest concentration of drug that inhibits growth of the bacteria after a suitable period of incubation is reported as the minimum inhibitory concentration.

The resistance or susceptibility of an organism to an antibiotic is determined on the basis of clinical outcome, i.e., whether administration of that antibiotic to a subject infected by that organism will successfully cure the subject. While an organism may literally be susceptible to a high concentration of an antibiotic in vitro, the organism may in fact be resistant to that antibiotic at physiologically realistic concentrations. If the concentration of drug required to inhibit growth of or kill the organism is greater than the concentration that can safely be achieved without toxicity to the subject, the microorganism is considered to be resistant to the antibiotic. To facilitate the identification of antibiotic resistance or susceptibility using in vitro test results, the National Committee for Clinical Laboratory Standards (NCCLS) has formulated standards for antibiotic susceptibility that correlate clinical outcome to in vitro determinations of the minimum inhibitory concentration of antibiotic.

There continues to exist a need in the art for new antimicrobial, and especially anti-gram-positive microbial, methods and materials. Products and methods responsive to this need would ideally involve substantially non-toxic compounds available in large quantities by means of synthetic or recombinant methods. Ideal compounds would have bactericidal or bacteriostatic activity when administered or applied as the sole anti-microbial agent. Such compounds ideally would also be useful in combinative therapies with other anti-microbial agents, particularly where potentiating effects are provided.

SUMMARY OF THE INVENTION

The present invention provides methods and compositions for treating gram-positive bacterial infections, including conditions associated therewith or resulting therefrom (for example, sepsis or bacteremia), in a subject by administering a BPI protein product alone, or concurrently with an antibiotic. The invention is based upon the discovery that BPI protein products surprisingly have direct bactericidal and growth inhibitory effects on some gram-positive organisms, and that BPI protein products unexpectedly have the ability to increase the antibiotic susceptibility of gram-positive bacteria, including the ability to reverse in many instances the antibiotic resistance of gram-positive bacteria. The invention is also based upon the finding that BPI protein products and antibiotics provide additive and synergistic bactericidal/growth inhibitory effects when administered concurrently.

According to one aspect of the invention, a method is provided of treating a gram-positive bacterial infection comprising the step of administering to a subject suffering from a gram-positive bacterial infection a BPI protein product in an amount sufficient for monotherapeutic effectiveness. This method may be practiced when any BPI-susceptible gram-positive bacterial species is involved in the infection.

A second aspect of the invention provides a method of treating gram-positive bacterial infection by concurrently administering to a subject suffering from a gram-positive bacterial infection a BPI protein product in an amount sufficient for combinative therapeutic effectiveness and one or more antibiotics in amounts sufficient for combinative therapeutic effectiveness. This method is effective even for gram-positive organisms that are not susceptible to the direct bactericidal/growth inhibitory effects of BPI.

For concurrent administration with antibiotics, the BPI protein product may be administered in an amount effective to increase the antibiotic susceptibility of a gram-positive bacterial species involved in the infection, or to potentiate the effects of the antibiotic. The BPI protein product may also be administered in an amount effective to reverse the antibiotic resistance of a gram-positive bacterial species involved in the infection. The BPI protein product and the antibiotics may each be administered in amounts that would be sufficient for monotherapeutic effectiveness upon administration alone or may be administered in less than monotherapeutic amounts.

Another aspect of the invention provides a method of treating gram-positive bacterial infection by concurrently administering to a subject suffering from a gram-positive bacterial infection a BPI protein product and one or more antibiotics, in synergistically effective amounts.

In addition, the invention provides a method of killing or inhibiting growth of gram-positive bacteria comprising contacting the bacteria with a BPI protein product alone, or in combination with another antibacterial agent. This method can be practiced in vivo or in a variety of in vitro uses such as use in food preparation, to decontaminate fluids and surfaces or to sterilize surgical and other medical equipment and implantable devices, including prosthetic joints. These methods can correspondingly be used for in situ sterilization of indwelling invasive devices such as intravenous lines and catheters, which are often foci of infection, or for sterilization of in vitro tissue culture media.

The invention further provides a method of killing or inhibiting growth of gram-positive bacteria with disrupted cell walls, including L-phase variants, by contacting such bacteria with a BPI protein product alone, or in conjunction with another antibacterial agent. This method can also be practiced on organisms that lack cell walls, such as Mycoplasma or Ureaplasma.

The invention further provides the use of BPI protein product for the manufacture of a medicament for treatment of gram-positive bacterial infections, and the use of a BPI protein product in combination with an antibiotic for manufacture of a medicament for treatment of gram-positive bacterial infections.

Numerous additional aspects and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of the invention which describes presently preferred embodiments thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 relates to plate assays of the bactericidal effect of rBPI₂₃ on Bacillus subtilis.

FIG. 2 shows results from radial diffusion assays of the growth inhibitory effect of rBPI₂₁ on Staphylococcus aureus with or without penicillin.

FIG. 3 depicts results from radial diffusion assays of the effect of rBPI₂₁ on penicillin-treated S. aureus and L-phase variants.

FIG. 4 shows the effect of various BPI protein products on penicillin-treated S. aureus in a radial diffusion assay.

FIGS. 5, 6, 7 and 8 show the effect of various BPI protein products, including BPI-derived peptides, on the S. aureus bacterial form and L-phase variant in a radial diffusion assay.

FIG. 9 relates to the effect of CaCl₂ concentration on the growth of S. aureus L-phase variant in broth.

FIG. 10 depicts results from a broth growth inhibition assay of the effect of rBPI₂₁ on S. aureus L-phase variant.

FIGS. 11, 12 and 13 shows results from broth growth inhibition assays of the effect of rBPI₂₁ on S. aureus L-phase variant, at CaCl₂ concentrations of 2.5 mM, 5 mM and 10 mM, respectively.

FIG. 14 shows the effect of rBPI₂₁ in an E. coli broth growth inhibition assay.

FIG. 15 displays the effect of a variety of BPI protein products on S. pneumoniae L-forms in a radial diffusion assay.

FIGS. 16 and 17 show the effect of BPI protein products, including BPI-derived peptides, on the S. pneumoniae bacterial form and L-phase variant in a radial diffusion assay.

FIGS. 18 and 19 show the effect of BPI protein products, including BPI-derived peptides, on the S. pyogenes bacterial form and L-phase variant in a radial diffusion assay.

FIG. 20 shows the effect of a variety of BPI protein products on E. faecalis L-forms in a radial diffusion assay.

FIGS. 21 and 22 show the effect of BPI protein products, including BPI-derived peptides, on the mycoplasma Acholeplasma laidlawii in a radial diffusion assay.

FIGS. 23, 24 and 25 display the effect of BPI protein products and LBP derivatives on S. aureus L-forms and S. pneumoniae L-forms in radial diffusion assays.

FIGS. 26 through 32 displays rBPI₂₁, potentiation of the early bactericidal effect of various antibiotics on S. pneumoniae, S. aureus and E. faecalis.

DETAILED DESCRIPTION

The present invention relates to methods and materials for treating subjects suffering from gram-positive bacterial infections. "Gram-positive bacterial infection," as used herein, encompasses conditions associated with or resulting from gram-positive bacterial infection (e.g., sequelae). These conditions include gram-positive sepsis and one or more of the conditions associated therewith, including bacteremia, fever, hypotension, shock, metabolic acidosis, disseminated intravascular coagulation and related clotting disorders, anemia, thrombocytopenia, leukopenia, adult respiratory distress syndrome and related pulmonary disorders, renal failure and related renal disorders, hepatobiliary disease and central nervous system disorders. These conditions also include translocation of gram-negative bacteria from the intestines and concomitant release of endotoxin. Gram-positive bacteria include bacteria from the following species: Staphylococcus, Streptococcus, Micrococcus, Peptococcus, Peptostreptococcus, Enterococcus, Bacillus, Clostridium, LactobacilIus, Listeria, Erysipelothrix, Propionibacterium, Eubacterium, and Corynebacterium.

A variety of gram-positive organisms are capable of causing sepsis. The most common organisms involved in sepsis are Staphylococcus aureus, Streptoccocus pneumoniae, coagulase-negative staphylococci, beta-hemolytic streptococci, and enterococci, but any gram-positive organism may be involved. [Bone, J. Critical Care, 8: 51-59 (1993).]

According to one aspect of the invention, BPI protein product alone, in an amount sufficient for monotherapeutic effectiveness, may be administered to a subject suffering from infection involving a BPI-susceptible gram-positive bacteria. When used to describe administration of BPI protein product alone, the term "amount sufficient for monotherapeutic effectiveness" means an amount of BPI protein product that provides bactericidal or growth inhibitory effects when administered as a monotherapy. The invention utilizes any of the large variety of BPI protein products known to the art including natural BPI protein, recombinant BPI protein, BPI fragments, BPI analogs, BPI variants, and BPI-derived peptides.

This aspect of the invention is based on the discovery that BPI protein products have direct bactericidal or growth inhibitory activity against some gram-positive organisms. BPI protein products are also shown herein to have direct bactericidal or growth inhibitory effects on L-phase variants of a variety of gram-positive organisms; these L-phase variants lack the cell walls of the normal bacterial form. BPI protein products are also expected to exert direct bactericidal/growth inhibitory effects on the cell wall-less Mycoplasma and Ureaplasma, organisms involved clinically in respiratory and urogenital infections. Mycoplasma is also a major contaminant of in vitro tissue cultures.

According to a second aspect of the invention, a subject suffering from a gram-positive bacterial infection may be treated by concurrent administration of a BPI protein product in an amount sufficient for combinative therapeutic effectiveness and one or more antibiotics in amounts sufficient for combinative therapeutic effectiveness. This aspect of the invention contemplates concurrent administration of BPI protein product with any antibiotic or combinations of antibiotics, including β-lactam antibiotics with and without β-lactamase inhibitors, aminoglycosides, tetracyclines, sulfonamides and trimethoprim, vancomycin, macrolides, fluoroquinolones and quinolones, polymyxins and other antibiotics.

This aspect of the invention is based on the discovery that administration of BPI protein products improves the therapeutic effectiveness of antibiotics, e.g., by increasing the antibiotic susceptibility of gram-positive organisms to a reduced dosage of antibiotics providing benefits in reduction of cost of antibiotic therapy and/or reduction of risk of toxic responses to antibiotics. BPI protein products are shown herein to lower the minimum concentration of antibiotics needed to inhibit in vitro growth of gram-positive organisms at 24 hours. In cases where BPI protein product did not affect growth at 24 hours, BPI protein product was shown to potentiate the early bactericidal effect of antibiotics in vitro at 0-7 hours. The BPI protein products exert these effects even on gram-positive organisms that are not susceptible to the direct bactericidal or growth inhibitory effects of BPI protein product alone.

This aspect of the invention is correlated to the additional discovery that administration of a BPI protein product can effectively reverse the antibiotic resistance of a gram-positive organism. BPI protein products are shown herein to reduce the minimum inhibitory concentration of antibiotics from a level within the clinically resistant range to a level within the clinically susceptible range. BPI protein products thus can convert normally antibiotic-resistant organisms into antibiotic-susceptible organisms.

According to this second aspect of the invention, the BPI protein product and antibiotics are concurrently administered in amounts sufficient for combinative therapeutic effectiveness. When used to describe administration of a BPI protein product in conjunction with an antibiotic, the term "amount sufficient for combinative therapeutic effectiveness" with respect to the BPI protein product means at least an amount effective to increase the susceptibility of the organism to the antibiotic, and the term "amount sufficient for combinative therapeutic effectiveness" with respect to an antibiotic means at least an amount of the antibiotic that produces bactericidal or growth inhibitory effects when administered in conjunction with that amount of BPI protein product. Either the BPI protein product or the antibiotic, or both, may be administered in an amount below the level required for monotherapeutic effectiveness against a gram-positive bacterial infection. The BPI protein product may be administered in an amount which is not sufficient for monotherapeutic effectiveness but which provides increased antibiotic susceptibility or potentiates the effects of the antibiotic, or which reverses the resistance of the gram-positive organism to an antibiotic.

A further aspect of the invention relates to the discovery that concurrent administration of BPI protein products with antibiotics provides synergistic bactericidal or growth inhibitory effects beyond the individual bactericidal or growth inhibitory effects of the BPI protein product or the antibiotic. Some methods for evaluating the effect of antimicrobial combinations are described in Eliopoulos and Moellering In Antibiotics in Laboratory Medicine, 3rd ed. (Lorian, V., Ed.) pp. 432-492, Williams and Wilkins, Baltimore Md. (1991). There is general agreement on qualitative definition of synergism: the combined effect of the drugs being examined is significantly greater than the expected result based on independent effects of the drugs when used separately. In a checkerboard assay, the combination of BPI protein product with antibiotics may be shown to result in a "synergistic" fractional inhibitory concentration index (FIC). The checkerboard method is based on additivity, which assumes that the result observed with multiple drugs is the sum of the separate effects of the drugs being tested; according to this system a FIC of less than 0.5 is scored as synergy, 1 is scored as additive, and greater than 1 but less than 2 is scored as indifferent. In contrast, kinetic assays are based on the idea that only one metabolic pathway at a time can be growth rate-limiting for an organism; according to this system, the combined effect of drugs that do not interact with one another (autonomous or indifferent) is simply the effect of the most active drug alone.

According to this aspect of the invention, "effective synergy" or potentiation upon concurrent administration of BPI protein product with one or more antibiotics can be obtained in a number of ways. A BPI protein product may convert an antibiotic-resistant organism into an antibiotic-susceptible organism or otherwise improve the antibiotic susceptibility of that organism. Conversely, a BPI-potentiating antibiotic, such as an antibiotic that acts on the cell wall or cell membrane of bacteria, may convert a BPI-resistant organism into a BPI-susceptible organism. Alternatively, the BPI protein product and antibiotic may both co-potentiate the other agent's activity. The BPI protein product and antibiotic may have a therapeutic effect when both are given in doses below the amounts sufficient for monotherapeutic effectiveness.

Either the BPI protein product or the antibiotics may be administered systemically or topically. Systemic routes of administration include oral, intravenous, intramuscular or subcutaneous injection (including into a depot for long-term release), intraocular or retrobulbar, intrathecal, intraperitoneal (e.g. by intraperitoneal lavage), transpulmonary using aerosolized or nebulized drug, or transdermal. Topical routes include administration in the form of salves, ophthalmic drops, ear drops, or irrigation fluids (for, e.g., irrigation of wounds).

"Concurrent administration," or co-treatment, as used herein includes administration of the agents, in conjunction or combination, together, or before or after each other. The BPI protein product and antibiotics may be administered by different routes. For example, the BPI protein product may be administered intravenously while the antibiotics are administered intramuscularly, intravenously, subcutaneously, orally or intraperitoneally. Alternatively, the BPI protein product may be administered intraperitoneally while the antibiotics are administered intraperitoneally or intravenously, or the BPI protein product may be administered in an aerosolized or nebulized form while the antibiotics are administered, e.g., intravenously. The BPI protein product and antibiotics are preferably both administered intravenously. The BPI protein product and antibiotics may be given sequentially in the same intravenous line, after an intermediate flush, or may be given in different intravenous lines. The BPI protein product and antibiotics may be administered simultaneously or sequentially, as long as they are given in a manner sufficient to allow both agents to achieve effective concentrations at the site of infection.

Concurrent administration of BPI protein product and antibiotic is expected to provide more effective treatment of gram-positive bacterial infection. Concurrent administration of the two agents may provide greater therapeutic effects in vivo than either agent provides when administered singly. It may permit a reduction in the dosage of one or both agents with achievement of a similar therapeutic effect. Alternatively, the concurrent administration may produce a more rapid or complete bactericidal/bacteriostatic effect than could be achieved with either agent alone.

Therapeutic effectiveness is based on a successful clinical outcome, and does not require that the antimicrobial agent or agents kill 100% of the organisms involved in the infection. Success depends on achieving a level of antibacterial activity at the site of infection that is sufficient to inhibit the bacteria in a manner that tips the balance in favor of the host. When host defenses are maximally effective, the antibacterial effect required may be minimal. Reducing organism load by even one log (a factor of 10) may permit the host's own defenses to control the infection. In addition, augmenting an early bactericidal/bacteriostatic effect can be more important than long-term bactericidal/bacteriostatic effect. These early events are a significant and critical part of therapeutic success, because they allow time for host defense mechanisms to activate. Increasing the bactericidal rate may be particularly important for infections such as meningitis, bone or joint infections. [Stratton, Antibiotics in Laboratory Medicine, 3rd ed. (Loftan, V., Ed.) pp. 849-879, Williams and Wilkins, Baltimore Md. (1991)].

The effect of BPI protein product to improve the therapeutic effectiveness of antibiotics in vivo may be demonstrated in in vivo animal models, or may be predicted on the basis of a variety of in vitro tests, including (1) determinations of the minimum inhibitory concentration (MIC) of an antibiotic required to inhibit growth of a gram-negative organism for 24 hours, (2) determinations of the effect of an antibiotic on the kinetic growth curve of a gram-negative organism, and (3) checkerboard assays of the MIC of serial dilutions of antibiotic alone or in combination with serial dilutions of BPI protein product. Exemplary models or tests are described in Eliopoulos and Moellering In Antibiotics in Laboratory Medicine, 3rd ed. (Loftan, V., Ed.) pp. 432-492, Williams and Wilkins, Baltimore Md. (1991).

Using in vitro determinations of antibiotic MIC at 24 hours, a BPI protein product may be shown to reduce the MIC of the antibiotic. With this result, it is expected that concurrent administration of the BPI protein product in vivo will increase susceptibility of the gram-negative organism to the antibiotic. A BPI protein product may also be shown to reduce the MIC of an antibiotic from the range in which the organism is considered clinically resistant to a range in which the organism is considered clinically susceptible. With this result, it is expected that concurrent administration in vivo of the BPI protein product with the antibiotic will reverse resistance and effectively convert the antibiotic-resistant organism into an antibiotic-susceptible organism.

By measuring the effect of antibiotics on the in vitro growth curves of gram-negative organisms, in the presence or absence of a BPI protein product, the BPI protein product may be shown to enhance the early antibacterial effect of antibiotics at 0-24 hours. Enhancement of early bactericidal/growth inhibitory effects is important in determining therapeutic outcome.

BPI protein product is thought to interact with a variety of host defense elements present in whole blood or serum, including complement, p15 and LBP, and other cells and components of the immune system. Such interactions may result in potentiation of the activities of BPI protein product. Because of these interactions, BPI protein products can be expected to exert even greater activity in vivo than in vitro. Thus, while in vitro tests are predictive of in vivo utility, absence of activity in vitro does not necessarily indicate absence of activity in vivo. For example, BPI has been observed to display a greater bactericidal effect on gram-negative bacteria in whole blood or plasma assays than in assays using conventional media. [Weiss et al., J. Clin. Invest. 90: 1122-1130 (1992)]. This may be because conventional in vitro systems lack the blood elements that facilitate or potentiate BPI's function in vivo, or because conventional media contain higher than physiological concentrations of Mueller-Hinton has˜physiological conclusion as serum magnesium and calcium, which are typically inhibitors of the antibacterial activity of BPI protein products. Furthermore, in the host, BPI protein product is available to neutralize translocation of gram-negative bacteria and concomitant release of endotoxin, a further clinical benefit not seen in or predicted by in vitro tests.

It is also contemplated that the BPI protein product be administered with other products that potentiate the bactericidal activity of BPI protein products. For example, serum complement potentiates the gram-negative bactericidal activity of BPI protein products; the combination of BPI protein product and serum complement provides synergistic bactericidal/growth inhibitory effects. See, e.g., Ooi et al. J. Biol. Chem., 265: 15956 (1990) and Levy et al. J. Biol. Chem., 268: 6038-6083 (1993) which address naturally-occurring 15 kD proteins potentiating BPI antibacterial activity. See also co-owned, co-pending PCT Application No. US 94/07834 fled Jul. 13, 1994, which corresponds to U.S. patent application Ser. No. 08/274,303 filed Jul. 11, 1994 as a continuation-in-part of U.S. patent application Ser. No. 08/093,201 filed Jul. 14, 1993. These applications, which are all incorporated herein by reference, describe methods for potentiating gram-negative bactericidal activity of BPI protein products by administering lipopolysaccharide binding protein (LBP) and LBP protein products. LBP protein derivatives and derivative hybrids which lack CD-14 immunostimulatory properties are described in PCT Application No. US94/06931 filed Jun. 17, 1994, which corresponds to co-owned, co-pending U.S. patent application Ser. No. 08/261,660, filed Jun. 17, 1994 as a continuation-in-part of U.S. patent application Ser. No. 08/079,510, filed Jun. 17, 1993, the disclosures of all of which are incorporated herein by reference.

BPI is commonly thought to be non-cytotoxic for many types of gram-positive bacteria. This lack of toxicity may be due primarily to the low affinity of BPI for the gram-positive cell wall and the ability of the cell wall to protect the cytoplasmic membrane from prolonged exposure to and subsequent damage by BPI. Because prokaryotic cytoplasmic membranes from both gram-positive and gram-negative bacteria may have similar structures that are distinct from those of eukaryotic membranes, BPI protein products may also be cytotoxic for gram-positive bacteria if the cell wall is removed or damaged or if the BPI protein products can be targeted to the cell surface with high affinity.

Without being bound by a theory of the invention, it is believed that BPI protein product may have several mechanisms of action. BPI protein product may act directly on the cell walls of gram-positive bacteria by binding to LPS-like molecules such as cell wall peptidoglycans and teichoic acid. If BPI is allowed to reach the inner cytoplasmic membrane, the amphipathic nature of BPI may allow it to penetrate the cytoplasmic membrane and exert a bactericidal effect. Thus, agents that act on or disrupt the cell walls of bacteria such as antibiotics, detergents or surfactants, anti-peptidoglycan antibodies, anti-lipoteichoic acid antibodies and lysozyme, may potentiate the activity of BPI by allowing access to the inner cytoplasmic membrane.

Likewise, BPI's action on the inner cytoplasmic membrane of bacteria may potentiate the action of antibiotics by allowing penetration of the antibiotic through the inner membrane, thus permitting it to affect the bacterial biochemical machinery. Moreover, because gram-positive bacterial infection may cause stress-induced translocation of bowel flora and/or LPS, BPI may also act beneficially by killing the gram-negative bacteria and neutralizing the LPS.

BPI protein product, through its heparin-binding ability, may interfere with the binding of gram-positive bacteria to the extracellular matrix (ECM) and to host cells. It has been previously shown that a number of organisms, including the gram-positive bacteria Staphylococcus aureus, Streptococcus mutans and Streptococcus pyogenes (Group A strep), express heparin-binding receptors. These heparin-binding receptors are believed to mediate binding of organisms to heparin-like molecules in the ECM and on host cells, e.g., endothelial cells. Heparin may also act as a bridge that mediates adhesion of organisms to host cells that have heparin receptors.

Finally, BPI protein product may bind to gram-positive bacterial cell wall components, such as peptidoglycans or teichoic acid, and thereby neutralize the action of these cell wall components in inducing gram-positive sepsis. These cell wall components are believed to play a role in gram-positive sepsis and septic shock. Both peptidoglycans and teichoic acids can activate the alternate complement pathway. Gram-positive bacterial cell wall components can also elicit production of cytokines involved in sepsis, including TNF, IL-1 and IL-6. [Bone, J. Critical Care, 8: 51-59 (1993); Bone, Arch. Intern. Med., 154: 26-34 (1994).] Highly purified gram-positive bacterial cell wall preparations (in which the covalent linkages and structure of peptidoglycan and teichoic acid chains remain unaltered) have been shown to stimulate the production of TNF-α and IL-6 by human monocytes. [Heumann et al., Infect. Immun., 62: 2715-2721 (1994).]

An advantage provided by the present invention is the ability to provide more effective treatment of gram-positive bacterial infections by improving the therapeutic effectiveness of antibiotics against gram-positive organisms. This allows use of lower concentrations of highly toxic or very expensive antibiotics, such as the aminoglycosides, vancomycin, rifampin, lincomycin, chloramphenicol, and the fluoroquinolones. Because the use of some antibiotics is limited by their systemic toxicity or prohibitive cost, lowering the concentration of antibiotic required for therapeutic effectiveness reduces toxicity and/or cost of treatment, and thus allows wider use of the antibiotic. Another advantage is the ability to treat gram-positive organisms that are normally resistant to one or more antibiotics. The present invention may also provide quality of life benefits due to, e.g., decreased duration of therapy, reduced stay in intensive care units or reduced stay overall in the hospital, with the concomitant reduced risk of serious nosocomial (hospital-acquired) infections.

The invention also provides improved methods of in vitro decontamination of fluids and surfaces contaminated with gram-positive bacteria by contacting the bacteria with BPI protein product alone, or in combination with one or more antibiotics. The amounts of BPI protein product and antibiotics used are amounts that are separately sufficient for bactericidal/growth inhibitory effects, or amounts sufficient to have additive or synergistic bactericidal/growth inhibitory effects. These methods can be used in a variety of in vitro applications including sterilization of surgical and other medical equipment and implantable devices, including prosthetic joints. These methods can also be used for in situ sterilization of indwelling invasive devices such as intravenous lines and catheters, which are often foci of infection.

The invention further provides pharmaceutical compositions for treatment of gram-positive bacterial infection comprising BPI protein product in combination with an antibiotic lacking gram-negative bactericidal activity, such as lincomycin and vancomycin. The pharmaceutical composition can optionally comprise a pharmaceutically acceptable diluent, adjuvant or carrier. As another aspect of the invention, antiseptic bactericidal compositions are provided which comprise a BPI protein product alone, or in combination with an antibiotic.

"LBP protein derivatives" includes natural, synthetic and recombinantly produced polypeptides comprising a portion of the amino acid sequence of Lipopolysaccharide Binding Protein (LBP) holoprotein, and which are characterized by the ability to bind to LPS but which lack the carboxy terminal-associated immunostimulatory element(s) characteristic of the LBP holoprotein and thus lack the CD14-mediated immunostimulatory activity characteristic of LBP holoprotein. LBP derivative proteins are described in detail in PCT Application No. US94/06931 filed Jun. 17, 1994, which corresponds to co-owned, co-pending U.S. patent application Ser. No. 08/261,660, filed Jun. 17, 1994 as a continuation-in-part of U.S. patent application Ser. No. 08/079,510, filed Jun. 17, 1993, the disclosures of all of which are incorporated herein by reference. Preferred LBP protein derivatives include N-terminal LBP fragments having a molecular weight of about 25 kD or less. One LBP N-terminal fragment is characterized by the amino acid sequence of the first 197 amino acids of the amino-terminus of LBP set out in SEQ ID NOS: 97 and 98, and is designated LBP₂₅. LBP protein derivatives also include polypeptides comprising part or all of one or more of three regions (defined by LBP amino acid sequences 17-45, 65-99 and 141-167) corresponding Coy reason of amino acid holology) to LPS binding regions of BPI (comprising amino acid sequences 17-45, 65-99 and 142-169). LBP protein derivatives also include polypeptides comprising a portion of the amino acid sequence of LBP holoprotein, wherein amino acids are added, deleted, or replaced, and wherein the LBP protein derivative maintains LPS-binding activity but lacks CD14-mediated immunostimulatory activity. One such LBP derivative is that wherein the alaninc residue at position 131 of the LBP₂₅ polypeptide fragment is substituted with a cysteine residue.

LBP derivatives include LBP derivative hybrid proteins comprising a portion of the amino acid sequence of LBP and a portion of at least one other polypeptide, such as BPI protein or immunoglobulin chain. One such derivative is an LBP/BPI hybrid protein (LBP(1-197)/BPI(200-456)), which comprises amino acid residues 1-197 of LBP followed in sequence by amino acid residues 1-199 of BPI. Other LBP hybrid proteins comprise LBP amino acid sequences into which all or portions of LPS binding domains of other LPS binding proteins (such as BPI) have been inserted or substituted.

As used herein, "BPI protein product" includes naturally and recombinantly produced BPI protein; natural, synthetic, and recombinant biologically active polypeptide fragments of BPI protein; biologically active polypeptide variants of BPI protein or fragments thereof, including hybrid fusion proteins and dimers; biologically active polypeptide analogs of BPI protein or fragments or variants thereof, including cysteine-substituted analogs; and BPI-derived peptides. The BPI protein products administered according to this invention may be generated and/or isolated by any means known in the art. U.S. Pat. No. 5,198,541, the disclosure of which is incorporated herein by reference, discloses recombinant genes encoding and methods for expression of BPI proteins including recombinant BPI holoprotein, referred to as rBPI₅₀ and recombinant fragments of BPI. Co-owned, copending U.S. patent application Ser. No. 07/885,501 and a continuation-in-part thereof, U.S. patent application Ser. No. 08/072,063 filed May 19, 1993 and corresponding PCT Application No. 93/04752 filed May 19, 1993, which are all incorporated herein by reference, disclose novel methods for the purification of recombinant BPI protein products expressed in and secreted from genetically transformed mammalian host cells in culture and discloses how one may produce large quantities of recombinant BPI products suitable for incorporation into stable, homogeneous pharmaceutical preparations.

Biologically active fragments of BPI (BPI fragments) include biologically active molecules that have the same or similar amino acid sequence as a natural human BPI holoprotein, except that the fragment molecule lacks amino-terminal amino acids, internal amino acids, and/or carboxy-terminal amino acids of the holoprotein. Nonlimiting examples of such fragments include a N-terminal fragment of natural human BPI of approximately 25 kD, described in Ooi et al., J. Exp. Med., 1 74: 649 (1991), and the recombinant expression product of DNA encoding N-terminal amino acids from 1 to about 193 or 199 of natural human BPI, described in Gazzano-Santoro et al., Infect. Immun. 60: 4754-4761 (1992), and referred to as rBPI₂₃. In that publication, an expression vector was used as a source of DNA encoding a recombinant expression product (rBPI₂₃) having the 31-residue signal sequence and the first 199 amino acids of the N-terminus of the mature human BPI, as set out in FIG. 1 of Gray et al., supra, except that valine at position 151 is specified by GTG rather than GTC and residue 185 is glutamic acid (specified by GAG) rather than lysine (specified by AAG). Recombinant holoprotein (rBPI) has also been produced having the sequence (SEQ ID NOS: 145 and 146) set out in FIG. 1 of Gray et al., supra, with the exceptions noted for rBPI₂₃ and with the exception that residue 417 is alaninc (specified by GCT) rather than valine (specified by GTT). Other examples include dimetic forms of BPI fragments, as described in co-owned and co-pending U.S. patent application Ser. No. 08/212,132, filed Mar. 11, 1994, the disclosures of which are incorporated herein by reference. Preferred dimeric products include dimeric BPI protein products wherein the monomers are amino-terminal BPI fragments having the N-terminal residues from about 1 to 175 to about 1 to 199 of BPI holoprotein. A particularly preferred dimeric product is the dimeric form of the BPI fragment having N-terminal residues 1 through 193, designated rBPI₄₂ dimer.

Biologically active variants of BPI (BPI variants) include but are not limited to recombinant hybrid fusion proteins, comprising BPI holoprotein or biologically active fragment thereof and at least a portion of at least one other polypeptide, and dimeric forms of BPI variants. Examples of such hybrid fusion proteins and dimeric forms are described by Theofan et al. in co-owned, copending U.S. patent application Ser. No. 07/885,911, and a continuation-in-part application thereof, U.S. patent application Ser. No. 08/064,693 filed May 19, 1993 and corresponding PCT Application No. US93/04754 filed May 19, 1993, which are all incorporated herein by reference and include hybrid fusion proteins comprising, at the amino-terminal end, a BPI protein or a biologically active fragment thereof and, at the carboxy-terminal end, at least one constant domain of an immunoglobulin heavy chain or allelic variant thereof. Another example of such a hybrid fusion protein is the recombinant expression product of DNA encoding amino acids 1 through 199 of BPI joined to DNA encoding amino acids 198 through 456 of LBP, designated BPI(1-199)-LBP(198-456) hybrid, is described in PCT Application No. US94/06931 filed Jun. 17, 1994, which corresponds to co-owned, co-pending U.S. patent application Ser. No. 08/261,660, filed Jun. 17, 1994 as a continuation-in-pan of U.S. patent application Ser. No. 08/079,510, filed Jun. 17, 1993, the disclosures of all of which are incorporated herein by reference.

Biologically active analogs of BPI (BPI analogs) include but are not limited to BPI protein products wherein one or more amino acid residues have been replaced by a different amino acid. For example, co-owned, copending U.S. patent application Ser. No. 08/013,801 filed Feb. 2, 1993 and corresponding PCT Application No. US94/01235 filed Feb. 2, 1994, the disclosures of which are incorporated herein by reference, discloses polypeptide analogs of BPI and BPI fragments wherein a cysteine residue is replaced by a different amino acid. A preferred BPI protein product described by this application is the expression product of DNA encoding from amino acid 1 to approximately 193 or 199 of the N-terminal amino acids of BPI holoprotein, but wherein the cysteine at residue number 132 is substituted with alanine and is designated rBPI₂₁ Δcys or rBPI₂₁. Other examples include dimetic forms of BPI analogs; e.g. co-owned and co-pending U.S. patent application Ser. No. 08/212,132 filed Mar. 11, 1994, the disclosures of which are incorporated herein by reference.

Other BPI protein products useful according to the methods of the invention are peptides derived from or based on BPI produced by recombinant or synthetic means (BPI-derived peptides), such as those described in co-owned and copending PCT Application No. US94/10427 filed Sep. 15, 1994, which corresponds to U.S. patent application Ser. No. 08/306,473 filed Sep. 15, 1994, and PCT Application No. US94/02465 filed Mar. 11, 1994, which corresponds to U.S. patent application Ser. No. 08/209,762, filed Mar. 11, 1994, which is a continuation-in-part of U.S. patent application Ser. No. 08/183,222, filed Jan. 14, 1994, which is a continuation-in-part of U.S. patent application Ser. No. 08/093,202 filed Jul. 15, 1993 (for which the corresponding international application is PCT Application No. US94/02401 filed Mar. 11, 1994), which is a continuation-in-part of U.S. patent application Ser. No. 08/030,644 filed Mar. 12, 1993, the disclosures of all of which are incorporated herein by reference.

Presently preferred BPI protein products include recombinantly-produced N-terminal fragments of BPI, especially those having a molecular weight of approximately between 21 to 25 kD such as rBPI₂₃ or rBPI₂₁, or dimeric forms of these N-terminal fragments (e.g., rBPI₄₂ dimer). Additionally, preferred BPI protein products include rBPI₅₀ and BPI-derived peptides.

The administration of BPI protein products is preferably accomplished with a pharmaceutical composition comprising a BPI protein product and a pharmaceutically acceptable diluent, adjuvant, or carrier. The BPI protein product may be administered without or in conjunction with known surfactants, other chemotherapeutic agents or additional known anti-microbial agents. A preferred pharmaceutical composition containing BPI protein products (e.g., rBPI₅₀, rBPI₂₃) comprises the BPI protein product at a concentration of 1 mg/ml in citrate buffered saline (5 or 20 mM citrate, 150 mM NaCl, pH 5.0) comprising 0.1% by weight of poloxamer 188 (Pluronic F-68, BASF Wyandotte, Parsippany, N.J.) and 0.002% by weight of polysorbate 80 (Tween 80, ICI Americas Inc., Wilmington, Del.). Another preferred pharmaceutical composition containing BPI protein products (e.g., rBPI₂₁) comprises the BPI protein product at a concentration of 2 mg/ml in 5 mM citrate, 150 mM NaCl, 0.2% poloxamer 188 and 0.002% polysorbate 80. Such preferred combinations are described in co-owned, co-pending PCT Application No. US94/01239 filed Feb. 2, 1994, which corresponds to U.S. patent application Ser. No. 08/190,869 filed Feb. 2, 1994 and U.S. patent application Ser. No. 08/012,360 filed Feb. 2, 1993, the disclosures of all of which are incorporated herein by reference.

Suitable antibiotics, and therapeutically effective concentrations thereof when administered with BPI protein products, may be determined in in vivo models or according to in vitro tests, for example, the in vitro minimum inhibitory concentration (MIC) and in vivo mouse peritonitis or rabbit bacteremia assays taught herein. Suitable antibiotics are antibiotics that act on the bacterial cell wall, cell membrane, protein metabolism or nucleic acid metabolism. These would include antibiotics or combinations of antibiotics from the following classes: β-lactam antibiotics with or without β-lactamase inhibitors, aminoglycosides, tetracyclines, sulfonamides and trimethoprim, vancomycin, macrolides, fluoroquinolones and quinolones, polymyxins, and other antibiotics. Dosage and administration of suitable antibiotics are known in the art, and briefly summarized below.

PENICILLINS

When a BPI protein product is concurrently administered with a penicillin, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The penicillin is generally given in doses ranging from 1 μg/kg to 750 mg/kg daily, preferably not to exceed 24 grams daily for adults (or 600 mg/kg daily for children), and is preferably administered as follows:

Penicillin G is preferably administered parenterally to adults in doses ranging from 600,000 to 1,000,000 units per day. In conventional administration, it is effective largely against gram-positive organisms. For treatment of pneumococcal meningitis, penicillin G is administered in doses of 20-24 million units daily, in divided doses every 2 or 3 hours. For children, the preferred parenteral dose of penicillin G is 300,000 to 1,000,000 units per day. One unit of penicillin G contains 0.6 μg of pure sodium penicillin G (i.e., 1 mg is 1667 units).

Amoxicillin may be administered parenterally to adults in doses ranging from 750 mg to 1.5 grams per day, in 3 equally divided doses. For children, preferred parenteral doses of amoxicillin range from 20 to 40 mg/kg per day in 3 equally divided doses. Amoxicillin is also available in combination with clavulanic acid, a β-lactamase inhibitor. A 250 mg dose of the combination drug amoxicillin/clavulanate will contain 250 mg of amoxicillin and either 125 or 62.5 mg of clavulanic acid. The combination is preferably administered to adults orally in doses of 750 mg per day divided into 3 equal doses every 8 hours, with a preferred dose of 1.5 grams per day for severe infections, given in 3 equally divided doses. In children, the preferred oral dose is 20 to 40 mg/kg per day in 3 equally divided doses.

Ampicillin is preferably administered parenterally to adults in doses of 6 to 12 grams per day for severe infections, in 3 to 4 equally divided doses. In children, the preferred parenteral dose of ampicillin is 50 to 200 mg/kg per day in 3 to 4 equally divided doses. Larger doses of up to 400 mg/kg per day, for children, or 12 grams per day, for adults, may be administered parenterally for treatment of meningitis. Ampicillin is also available in combination with sulbactam, a β-lactamase inhibitor. Each 1.5 gram dose of ampicillin/sulbactam contains 1 gram of ampicillin and 0.5 grams of sulbactam. The combination is preferably administered parenterally to adults in doses of 6 to 12 grams per day divided into 4 equal doses every 6 hours, not to exceed a total of 12 grams per day.

Azlocillin is preferably administered parenterally to adults in doses of 8 to 18 grams per day, given in 4 to 6 equally divided doses.

Carbenicillin is preferably administered parenterally to adults in doses of 30 to 40 grams per day, given by continuous infusion or in 4 to 6 equally divided doses. Daily doses of up to 600 mg/kg have been used to treat children with life-threatening infections.

Mezlocillin is preferably administered to adults parenterally in doses of 100 to 300 mg/kg per day, given in 4 to 6 equally divided doses. The usual dose is 16 to 18 grams per day; for life threatening infections, 350 mg/kg per day may be administered, but in doses not to exceed 24 grams per day given in 6 equally divided doses every 4 hours. For children, the preferred parenteral dose of mezlocillin is 150 to 300 mg/kg per day.

Nafcillin is preferably administered intravenously to adults in doses of 3 grams per day, given in 6 equally divided doses every 4 hours, with doubled doses for very severe infections. In conventional administration, it is effective largely against gram-positive organisms. In children, the preferred parenteral dose is 20 to 50 mg/kg per day, in 2 equally divided doses every 12 hours. The preferred oral dose for nafcillin ranges from 1 gram per day to 6 grams per day in 4 to 6 divided doses.

Oxacillin is preferably administered parenterally to adults in doses of 2 to 12 grams per day, in 4 to 6 equally divided doses. In conventional administration, it is effective largely against gram-positive organisms. In children, oxacillin is preferably administered in doses of 100 to 300 mg/kg per day.

Piperacillin is preferably administered parenterally to adults in doses ranging from 100 mg/kg, or 6 grams per day, in 2 to 4 equally divided doses, up to a maximum of 24 grams per day, in 4 to 6 equally divided doses. Higher doses have been used without serious adverse effects.

Ticarcillin is preferably administered parenterally to adults in doses ranging from 4 grams per day to 18 grams per day administered in 4 to 6 equally divided doses. The usual dose is 200 to 300 mg/kg per day. For children, the preferred parenteral dose of ticarcillin ranges from 50 mg/kg per day to 300 mg/kg per day, given in 3, 4 or 6 equally divided doses. The combination ticarcillin/clavulanate is preferably administered parenterally to adults in doses of 200 to 300 mg/kg per day (based on ticarcillin content), in 4 to 6 equally divided doses. For adults, the usual dose is 3.1 grams (which contains 3 grams of ticarcillin and 100 mg of clavulanic acid) every 4 to 6 hours. The combination is also available in a dose of 3.2 grams, which contains 3 grams of ticarcillin and 200 mg of clavulanic acid.

In general, it is desirable to limit each intramuscular injection of a penicillin or cephalosporin to 2 grams; larger doses should be administered by multiple injections in different large muscle masses.

CEPHALOSPORINS

When a BPI protein product is concurrently administered with a cephalosporin, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The cephalosporin is generally given in doses ranging from 1 μg/kg to 500 mg/kg daily, preferably not to exceed 16 grams daily, and is preferably administered as follows:

Cefamandole is preferably administered parenterally to adults in doses ranging from 1.5 grams per day, given in 3 equally divided doses every 8 hours, to 12 grams per day for life-threatening infections, given in 6 equally divided doses every 4 hours. In children, cefamandole is preferably administered in doses ranging from 50 to 150 mg/kg per day, in 3 to 6 equally divided doses, not to exceed a total of 12 grams per day.

Cefazolin is preferably administered parenterally to adults in doses of 750 mg per day, given in 3 equally divided doses every 8 hours. In severe, life-threatening infections, it may be administered at doses of 6 grams per day divided into 4 equal doses every 6 hours; in rare instances, up to 12 grams per day have been used. In children, the preferred parenteral dose of cefazolin is 20 to 50 mg/kg per day, divided into 3 or 4 equal doses, with 100 mg/kg per day administered for severe infections.

Cefonicid is preferably administered parenterally to adults in doses ranging from 500 mg once daily, to 2 grams once daily for life-threatening infections. For intramuscular administration, a 2 gram dose should be divided into two 1-gram injections.

Cefoperazone is preferably administered parenterally to adults in doses ranging from 2 grams per day, given in 2 equally divided doses every 12 hours, to 12 grams per day for severe infections, given in 2, 3 or 4 equally divided doses. Doses up to 16 grams per day have been administered without complications.

Cefotetan is preferably administered parenterally to adults in doses of 1 to 4 grams per day, in 2 equally divided doses every 12 hours. Cefotetan may be administered in higher doses for fife-threatening infections, not to exceed a total dose of 6 grams per day.

Cefotaxime is preferably administered parenterally to adults in doses ranging from I to 12 grams per day, not to exceed 12 grams per day (2 grams every 4 hours) for fife-threatening infections. In children, the parenteral dose of cefotaxime is preferably 50 to 180 mg/kg, divided into 4 to 6 equal doses.

Cefoxitin is preferably administered parenterally to adults in doses ranging from 3 to 12 grams per day, given in 3, 4, or 6 equally divided doses. In children, cefoxitin is preferably administered parenterally in doses of 80 to 160 mg/kg per day, given in 4 or 6 equally divided doses, not to exceed a total dose of 12 grams per day.

Ceftazidime is preferably administered parenterally to adults in doses ranging from 500 mg per day, given in 2 to 3 equally divided doses (every 8 or 12 hours), up to a maximum of 6 grams per day. In children, ceftazidime is preferably administered intravenously in doses of 30 to 50 mg/kg, to a maximum of 6 grams per day.

Ceftizoxime is preferably administered parenterally to adults in doses ranging from 1 gram per day, given in 2 equally divided doses every 12 hours, to 12 grams per day for life-threatening infections, given in 3 equally divided doses every 8 hours. The usual adult dose is 1 to 2 grams every 8 or 12 hours. For children, the preferred parenteral dose is 50 mg/kg every 6 or 8 hours, for a total daily dose of 200 mg/kg.

Ceftriaxone is preferably administered parenterally to adults in doses ranging from 1 to 2 grams per day, given in 2 equally divided doses every 12 hours. It may be given in higher doses, not to exceed a total of 4 grams per day. In children, the preferred parenteral dose of ceftriaxone is 50 to 75 mg/kg per day, not to exceed 2 grams per day. In meningitis, ceftriaxone may be administered in doses of 100 mg/kg per day, not to exceed 4 grams per day.

Cefuroxime is preferably administered parenterally to adults in doses ranging from 2.25 to 4.5 grams per day, in 3 equally divided doses every 8 hours. For life-threatening infections, 6 grams per day may be administered in 4 equally divided doses every 6 hours, and for meningitis, 9 grams per day may be administered in 3 equally divided doses every 8 hours. For children, the preferred parenteral dose of cefuroxime is 50 to 150 mg/kg per day in 3 to 4 equally divided doses, or 240 mg/kg per day for meningitis.

Cephalexin is formulated for oral administration, and is preferably administered orally to adults in doses ranging from 1 to 4 grams per day in 2 to 4 equally divided doses. For children, the preferred dose is 20 to 50 mg/kg per day in divided doses, with doses being doubled for severe infections.

Cephalothin is usually administered parenterally to adults in doses of 8 to 12 grams per day.

OTHER BETA-LACTAMS

When a BPI protein product is concurrently administered with an imipenem antibiotic, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The imipenem is generally given in doses ranging from 1 μg/kg to 100 mg/kg daily, and is preferably administered as follows:

Imipenem is available in combination with cilastin, an inhibitor of the renal dipeptidase enzyme that rapidly inactivates imipenem. The combination is preferably administered intramuscularly to adults in doses of 1 to 1.5 grams per day, given in 2 equally divided doses every 12 hours. Intramuscular doses exceeding 1.5 grams per day are not recommended. The combination is preferably administered intravenously in doses ranging from 1 to 4 grams per day, in 4 equally divided doses every 6 hours; doses exceeding 50 mg/kg per day, or 4 grams per day, are not recommended.

When a BPI protein product is concurrently administered with a monobactam antibiotic, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The monobactam is generally given in doses ranging from 1 μg/kg to 200 mg/kg daily, and is preferably administered as follows:

Aztreonam is preferably administered parenterally to adults in doses ranging from 1 gram per day, given in 2 equally divided doses every 12 hours, up to a maximum recommended dose of 8 grams per day in cases of life-threatening infection, given in 3 or 4 equally divided doses.

AMINOGLYCOSIDES

When a BPI protein product is concurrently administered with an aminoglycoside, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The aminoglycoside is generally given in doses ranging from 1 μg/kg to 20 mg/kg daily, preferably not to exceed 15 mg/kg daily, and is preferably administered as follows:

When administering aminoglycosides, it is desirable to measure serum peak and trough concentrations to ensure the adequacy and safety of the dosage. Dosages should generally be adjusted to avoid toxic peak and trough concentrations. Amikacin is preferably administered parenterally to adults and children in doses of 15 mg/kg per day, divided into two or three equal doses every 8 or 12 hours, and not to exceed a total dose of 1.5 grams per day. For uncomplicated infections, a dose of 500 mg amikacin per day, in 2 equally divided doses, may be administered. Dosages should be adjusted to avoid prolonged serum peak concentrations of amikacin above 35 μg/ml and prolonged trough concentrations greater than 10 μg/ml.

Gentamicin is preferably administered parenterally to adults in doses of 3 mg/kg per day, in three equally divided doses every 8 hours. For life-threatening infections, up to 5 mg/kg per day in 3 to 4 equally divided doses may be administered, but this dosage should be reduced to 3 mg/kg per day as soon as clinically indicated. For children, gentamicin is preferably administered parenterally in doses of 6 to 7.5 mg/kg per day. Dosages should be adjusted to avoid prolonged serum peak concentrations of gentamicin above 12 μg/ml and prolonged trough concentrations greater than 2 μg/ml.

Netilmicin may be administered parenterally to adults in doses ranging from 3 mg/kg per day, in 2 equally divided doses every 12 hours, to 6.5 mg/kg per day for serious systemic infection, in 2 or 3 equally divided doses. In children, the preferred parenteral dose is 5.5 to 8 mg/kg per day, in 2 or 3 equally divided doses. Dosages should be adjusted to avoid prolonged serum peak concentrations of netilmicin above 16 μg/ml and prolonged serum trough concentrations above 4 μg/ml.

Tobramycin is preferably administered parenterally to adults in doses of 3 mg/kg per day, given in three equally divided doses every 8 hours. For life-threatening infections, tobramycin may be administered in doses up to 5 mg/kg per day, in 3 or 4 equally divided doses, but this dosage should be reduced to 3 mg/kg per day as soon as clinically indicated. In children, tobramycin is preferably administered parenterally in doses of 6 to 7.5 mg/kg per day. Prolonged serum concentrations of tobramycin above 12 μg/ml should be avoided, and rising trough levels above 2 μg/ml may indicate tissue accumulation, which may contribute to toxicity.

Concurrent administration of BPI protein product with the aminoglycosides, including amikacin, gentamicin, netilmicin and tobramycin, may permit a lowering of the dose of these toxic antibiotics necessary to achieve a therapeutic effect.

TETRACYCLINES

When a BPI protein product is concurrently administered with a tetracycline, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The tetracycline is generally given in doses ranging from 1 μg/kg to 50 mg/kg daily, and is preferably administered as follows:

The tetracycline antibiotics are generally administered to adults in doses of 1 to 2 grams per day. An exception is doxycycline, which is preferably administered intravenously to adults in doses of 100 to 200 mg per day, and to children in doses of 2 mg/lb per day. Tetracycline may be administered parenterally to adults in doses of 0.5 to 2 grams per day, in 2 equally divided doses, and to children in doses of 10 to 20 mg/kg per day.

SULFONAMIDES

When a BPI protein product is concurrently administered with a sulfonamide or trimethoprim, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The sulfonamide or trimethoprim is generally given in doses ranging from 1 μg/kg to 150 mg/kg daily, preferably not to exceed a combination dose of 960 mg trimethoprim/4.8 g sulfamethoxazole daily, and is preferably administered as follows:

The combination trimethoprim/sulfamethoxazole is available in a formulation containing a 1: 5 ratio of trimethoprim and sulfamethoxazole (e.g., 16 mg trimethoprim and 80 mg sulfamethoxazole). The combination is preferably administered intravenously to adults or children in doses of 8 to 10 mg/kg (based on the weight of the trimethoprim component) per day, in 2 to 4 equally divided doses. For Pneumocystis carinii infection, the combination can be administered in doses of 20 mg/kg (based on the weight of the trimethoprim component) per day, in 3-4 equally divided doses, to a maximum recommended dose of 960 mg trimethoprim/4.8 g sulfamethoxazole per day. Trimethoprim alone is preferably administered orally to adults in doses of 200 mg per day. Sulfamethoxazole alone is preferably administered orally to adults in doses of 2 to 3 grams per day, and to children orally in doses of 50 to 60 mg/kg per day.

FLUOROQUINOLONES

When a BPI protein product is concurrently administered with a fluoroquinolone or quinolone, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The fluoroquinolone or quinolone is generally given in doses ranging from 1 μg/kg to 50 mg/kg daily, preferably not to exceed 1 gram daily, and is preferably administered as follows:

Norfloxacin is preferably administered orally to adults in doses from 400 to 800 mg daily, divided into two doses every 12 hours. Cinoxacin is preferably administered orally to adults in doses of 1 gram per day, given in 2 or 4 equally divided doses. Ciprofloxacin is preferably administered to adults intravenously in doses from 400 to 800 mg daily, or orally in doses from 500 to 1500 mg daily, divided into two doses every 12 hours. Ofloxacin is preferably administered to adults intravenously in doses from 400 to 800 mg daily, or orally in doses from 400 to 800 mg daily, divided into two doses every 12 hours.

VANCOMYCIN

When a BPI protein product is concurrently administered with vancomycin, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The vancomycin is generally given in doses ranging from 1 mg/kg to 50 mg/kg daily, and is preferably administered parenterally to adults in doses of 2 grams per day, divided into 2 or 4 doses every 6 or 12 hours. In children it is preferably administered in doses of 40 mg/kg, given in 4 equally divided doses every 6 hours. In conventional administration, vancomycin is effective largely against gram-positive organisms.

MACROLIDES

When a BPI protein product is concurrently administered with a macrolide, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily. The macrolide is generally given in doses ranging from 1 μg/kg to 100 mg/kg daily, and is preferably administered as follows:

Erythromycin is preferably administered intravenously to adults and children in doses of 15 to 20 mg/kg per day, given by continuous infusion or in 4 equally divided doses every 6 hours. Erythromycin can be administered at doses up to 4 grams per day in cases of very severe infection.

Clarithromycin is preferably administered orally to adults in doses of 500 mg to 1 gram daily, in equally divided doses every 12 hours.

Azithromycin is preferably administered orally to adults at a dose of 500 mg on the first day of treatment followed by 250 mg once daily for 4 days, for a total dose of 1.5 grams.

OTHERS

When a BPI protein product is concurrently administered with other antibiotics, for treatment of a gram-negative bacterial infection, the BPI protein product is generally given parenterally in doses ranging from 1 μg/kg to 100 mg/kg daily, and preferably at doses ranging from 1 mg/kg to 20 mg/kg daily.

Polymyxin B is generally given in doses ranging from 1 unit/kg to 45,000 units/kg daily, and is preferably administered intravenously to adults and children in doses of 15,000 to 25,000 units/kg per day, divided into 2 equal doses every 12 hours. It may be administered intramuscularly in doses of 25,000 to 30,000 units/kg per day, although these injections are very painful. Doses of polymyxin B as high as 45,000 units/kg per day have been used in limited clinical studies to treat neonates for Pseudomonas aeruginosa sepsis. Polymyxin B is the treatment of choice for P. aeruginosa meningitis, and is preferably administered intrathecally to adults and older children in doses of 50,000 units once daily for to 4 days, followed by 50,000 units every other day; in children under two years old, it is administered intrathecally in doses of 20,000 daily for 3 to 4 days, followed by 25,000 units every other day.

Chloramphenicol is preferably administered intravenously to adults in doses of 50 mg/kg per day, in 4 equally divided doses; in exceptional cases, it can be administered in doses up to 100 mg/kg per day. In children, chloramphenicol is preferably administered intravenously in doses of 25 mg/kg per day, although up to 100 mg/kg per day can be administered in cases of severe infection.

Clindamycin is preferably administered parenterally to adults in doses ranging from 600 mg to 4.8 grams per day, given in 2, 3 or 4 equally divided doses. It is recommended that the dose in each intramuscular injection not exceed 600 mg. For children, clindamycin is preferably administered parenterally in doses of 15-40 mg/kg per day, given in 3 or 4 equally divided doses.

Dosages of all antimicrobial agents should be adjusted in patients with renal impairment or hepatic insufficiency, due to the reduced metabolism and/or excretion of the drugs in patients with these conditions. Doses in children should also be reduced, generally according to body weight. Those skilled in the art can readily optimize effective dosages and administration regimens for the BPI protein product and the antibiotics in concurrent administration.

Other aspects and advantages of the present invention will be understood upon consideration of the following illustrative examples. Example 1 addresses plate assays of the bactericidal effect in vitro of a BPI protein product on the gram-positive organism Bacillus subtilis. Example 2 relates to plate assays of the in vitro growth inhibitory effect of a BPI protein product on the gram-positive organism Staphylococcus aureus and its L-phase variant. Example 3 evaluates the in vitro bactericidal and growth inhibitory effects of a variety of BPI protein products on Staphylococcus aureus, penicillin-treated S. aureus, and the L-phase variant, as measured in radial diffusion assays, plate assays, protein synthesis assays, and broth growth inhibition assays. Examples 4 and 5 evaluate the in vitro growth inhibitory effects of a variety of BPI protein products on L-phase variants of Streptococcus pneumoniae and Enterococcus faecalis, respectively. Example 6 examines the effect of a variety of BPI protein products on the mycoplasma Acholeplasma laidlawii. Example 7 examines the in vitro growth inhibitory effect of an LBP-BPI hybrid on a variety of gram-positive L-phase variants. Example 8 relates to radial diffusion assays measuring the growth inhibitory effect of a variety of BPI synthetic peptides on S. aureus. Examples 9-17 address large-scale screening of the bactericidal/growth inhibitory effect and the antibiotic susceptibility-increasing effect of BPI protein products on a variety of gram-positive organisms: S. pneumoniae (Example 9), Streptococcus pyogenes (Group A strep) (Example 10), Streptococcus agalactia (Group B strep) (Example 11), Streptococcus bovis (Example 12), E. faecalis (Example 13), Enterococcus faecium (Example 14), a variety of Enterococcus species (Example 15), S. aureus (Example 16), Staphylococcus epidermidis (Example 17), and various coagulase-negative Staphylococcus species (Example 18). Example 19 examines the early in vitro bactericidal effect of BPI and selected antibiotics on Streptococcus pneumoniae, Staphylococcus aureus and Enterococcus faecalis. Example 20 evaluates the effect of a BPI protein product, alone or with antibiotics, on Streptococcus pneumoniae (especially penicillin-resistant strains), Staphylococcus aureus (especially methicillin-resistant strains), Enterococcus (especially multiply resistant strains), and Corynebacteria. Example 22 evaluates the in vivo effects of BPI protein products alone or in combination with antibiotics in animal models.

EXAMPLE 1 IN VITRO BACTERICIDAL EFFECTS OF A BPI PROTEIN PRODUCT ON BACILLUS SUBTILIS

A plate assay was used to determine the effects of a BPI protein product on the gram-positive organism Bacillus subtilis (ATCC Accession No. 6633). The cells were incubated overnight at 37° C. in Brain Heart Infusion (BHI) broth (Difco, Detroit, Mich.), after which the optical density of the cell suspension was adjusted with additional BHI broth to A₆₀₀ =˜1.0 (equivalent to about 5×10⁸ CFU/ml). The cells were washed twice with 0.9% NaCl and resuspended in D-PBS, pH 7.4, to a cell density of approximately 1-2×10⁴ CFU/ml. The cells were diluted at a ratio of 1: 10 in Eafi's MEM medium (GIBCO, Grand Island, N.Y.) and 190 μl of the diluted cells (200-400 cells per well) added to low protein-binding 96 well plates (Coming, N.Y.). The rBPI₂₃ at varying concentrations was added to the wells to achieve final concentrations ranging from 200 to 1,000 nM in a total volume of 200 μl in each well, and the plates were incubated at 37° C. for 30 minutes or 60 minutes. After incubation, 100 μl from each well was plated on brain heart infusion agar plates. After 24 hours of incubation at 37° C., the number of colonies on each agar plate was counted.

In multiple experiments, rBPI₂₃ displayed clear and reproducible bactericidal activity at concentrations as low as 200 nM (about 4.5 μg/ml). The results of a representative experiment are displayed in FIG. 1, which shows that the bactericidal effects of rBPI₂₃ were dose-dependent. The bactericidal effects of rBPI₂₃ were more pronounced after 60 minutes of incubation than after 30 minutes.

EXAMPLE 2 IN VITRO EFFECTS OF A BPI PROTEIN PRODUCT ON STAPHYLOCOCCUS AUREUS AND ITS L-PHASE VARIANT IN A PLATE ASSAY

A plate assay was conducted to test the effect of a BPI protein product on the gram-positive organism Staphylococcus aureus (ATCC Accession No. 19636) and its L-phase variant (ATCC Accession No. 19640). An L-phase variant (also called an L-form) lacks a cell wall and must be grown in the presence of osmotically protective media containing serum (usually 5 to 10% horse serum).

S. aureus, or Escherichia coli J5 as a control were grown overnight in heart infusion (HI) broth and tryptone yeast extract (TYE) broth (both broths from Difco, Detroit, Mich.), respectively, then diluted 1: 100 in the same broth and grown to mid-log phase (A₆₀₀ =˜0.5). The S. aureus L-phase variant cells were grown on agar plates containing HI broth supplemented with 3.5% NaCl and 10% horse serum, and colonies were resuspended in 4 ml of HI broth supplemented with 3.5% NaCl to an A₆₀₀ of approximately 0.2 to 0.5. The cell suspensions were spread on agar plates containing HI broth supplemented with 3.5% NaCl and 5% horse serum. rBPI₂₁ was spotted on the surface of the plates in amounts varying from 0.75 to 3 μg, in 2 μl. No growth inhibition zones were observed on the S. aureus plates, but for the L-phase variant, a clear zone of growth inhibition was observed at 3 μg rBPI₂₁, and partial clear zones at 1.5 and 0.75 μg rBPI₂₁. In the control E. coli plate, clear zones were observed at 1.0 and 0.5 of rBPI₂₁. No zones of growth inhibition were observed for plates on which buffer alone was spotted. The results indicate that in the absence of a cell wall, growth of the gram-positive bacterium S. aureus is affected by BPI protein products.

EXAMPLE 3 IN VITRO EFFECTS OF VARIOUS BPI PROTEIN PRODUCTS ON STAPHYLOCOCCUS AUREUS, PENICILLIN-TREATED S. AUREUS, AND S. AUREUS L-PHASE VARIANT

A. EVALUATION IN RADIAL DIFFUSION ASSAYS

Radial diffusion assays were performed to determine the effect of various BPI protein products on S. aureus (ATCC Accession No. 19636) and penicillin-treated S. aureus or natural L-phase variants (ATCC Accession No. 19640) grown in osmotically protective media. Because penicillin inhibits peptidoglycan synthesis, cells that have been contacted with penicillin lose their cell walls once growth is initiated. If osmotic protection is provided, a certain percentage of the cells survive and grow as L-phase variants. This example was directed towards determining whether penicillin-treated cells or L-phase variants would be susceptible to BPI protein products because the protective barrier of the cell wall was absent.

S. aureus cells were grown overnight to mid-log phase in HI broth and were adjusted using the same broth to an optical density of A₆₀₀ =˜0.25 (equivalent to about 2.5×10⁸ cells/ml) or 2.5 (equivalent to about 2.5×10⁹ cells/ml). 80 μl of the cell suspension was added to 8 ml of molten agar medium containing 0.8% agarose, HI broth supplemented with 3.5% NaCl, and 1,000 units/ml penicillin G (Sigma, St. Louis, Mo.). The agar was poured into 90 mm plates and allowed to solidify. As a control, the same S. aureus cells were adjusted to an optical density of A₆₀₀ =0.25, 0.025, 0.0025 or 0.00025, and added to the same agar medium, but without penicillin. Holes, or wells, of 3 mm diameter were prepared in the 90 mm plates, and 5 μl of two-fold serial dilutions of rBPI₂₁ were added to each well. For the penicillin-treated cells, 240, 120, 60, 30, 15 and 7.5 picomoles (pmol) per well of rBPI₂₁ were tested, and the plates were incubated for 48 hours at 37° C. in a CO₂ incubator. For the control cells (not grown on penicillin G-containing plates), 400, 200, 100 and 50 pmol/well of rBPI₂₁ were tested, and the plates were incubated for 24 hours. The plates were then examined for zones of inhibition. The results, shown below in FIG. 2, demonstrate that the BPI protein product inhibited bacterial growth in a dose-dependent manner; rBPI₂₁ at levels as low as 30 pmol per well was able to inhibit growth of the penicillin-treated S. aureus cells. In contrast, even the highest concentration of rBPI₂₁ (400 pmol) had no effect on the control S. aureus cells grown without penicillin.

These results show that, while the normal bacterial form of S. aureus is not susceptible to BPI protein products, it can be rendered susceptible by penicillin treatment that causes loss of the cell wall due to inhibition of cell wall synthesis. This indicates that gram-positive bacteria are susceptible to BPI protein products if the cell wall is removed and the cytoplasmic membrane is exposed.

Additional radial diffusion assays were conducted on the natural S. aureus L-phase variant to confirm the above results. The cells were grown overnight in HI broth supplemented with 3.5% NaCl 10 mM CaCl₂ and 1000 units/ml penicillin G, to an A₆₀₀ =˜0.3. The cells were used either undiluted or as a 1: 10 dilution. 80 μl of the cell suspension was added to 8 ml of molten HI agar medium containing HI broth supplemented with 3.5% NaCl and 0.8% agarose. The agar was poured into 90 mm plates and allowed to solidify. As a control, a plate using the same medium was also prepared using 80 μl of normal S. aureus cells adjusted to A₆₀₀ =2.5 with HI broth supplemented with 3.5% NaCl, 10 mM CaCl, and 1000 μ/ml penicillin G. Holes, or wells, of 3 mm diameter were prepared in the 90 mm plates, and 5 μl of rBPI₂₁ in two-fold serial dilutions, starting at 5 μg/5 μl (or 240 pmol/5 μl), was added to the wells. The plates were incubated for 48 hours and then examined for zones of growth inhibition. The results of this experiment, shown in FIG. 3, demonstrate that the L-phase variant is also susceptible to BPI protein products.

Further radial diffusion assays were conducted to evaluate the effect of various BPI protein products, rBPI₂₃, rBPI₂₁, rBPI₅₀, BPI-Immunoglobulin fusion (the expression product of 1.c."p"ING4512 described in Theofan, et al., U.S. Application No. 07/885,911 filed May 19, 1992 and 08/064,693 filed May 19, 1993) and rBPI₄₂ dimer (the dimeric form of N-terminal (1-193) BPI, described in Amons, et al., U.S. Application No. 08/212,132 filed Mar. 11, 1994) on penicillin-treated S. aureus. S. aureus were grown to log phase in HI broth supplemented with 3.5% NaCl, 5 mM CaCl₂ and 1000 units/ml penicillin G, and was adjusted to A₆₀₀ =˜0.025. The cell suspension was added in a 1: 100 dilution to molten HI agar medium containing HI broth supplemented with 3.5% NaCl, 0.8% agarose, and 1000 units/ml penicillin G, which was then allowed to solidify. Serial 2-fold dilutions of each BPI protein product in 5 μl were added to 3-mm wells prepared in the plates. After 24 hours of incubation, the plates were examined for zones of growth inhibition. The results of these assays, shown in FIG. 4, demonstrate that these BPI protein products are all effective in inhibiting growth of penicillin-treated S. aureus, with BPI-Immunoglobulin fusion and rBPI₄₂ dimer being the most potent.

When these experiments were repeated using other species of bacteria, Staphylococcus epidermidis (ATCC Accession No. 35983), Enterococcus faecalis (ATCC Accession No. 4200), and Streptococcus pneumoniae (ATCC Accession No. 35088), using the BPI protein products rBPI₂₃ (5 μg/well), rBPI₂₁ (10 μg/well), rBPI42 dimer (5 μg/well), rBPI₅₀ (20 μg/well) and rBPI-Ig fusion (5 μg/well), no growth inhibition was observed for any of these BPI protein products. These results indicate that in this assay, the normal bacterial forms of these species of bacteria are also not susceptible to the BPI protein products when used at the concentrations indicated. Higher concentrations of these BPI protein products may produce different susceptibility results.

The effects of additional BPI protein products, BPI-derived peptides, on the S. aureus bacterial form (ATCC No. 19636) and its corresponding L-phase variant (ATCC No. 19640) were also evaluated in this radial diffusion assay. The cells were grown to log phase in either HI broth (for the bacterial forms) or HI broth supplemented with 3.5% NaCl, 5 mM CaCl₂ and 1000 U/mL penicillin G (for the L-phase variants). rBPI42 dimer and the BPI-derived peptides XMP. 13, XMP.30, XMP.48 and XMP. 102 (as described in Example 8 and Table 1 infra) were dissolved at ˜2 mg/mL in PBS (without calcium and magnesium) and the corrected concentration determined by comparing absorbance at 280 nM with that predicted by the extinction co-efficient. The bacteria were incorporated into agarose, 5 μl aliquots of various concentrations of the peptides or rBPI₄₂ dimer were added to each well, and the plates were incubated at 37° C for 24 hours (bacterial form) or 48 hours (L-phase variants). The results, shown in FIGS. 5 and 6, indicate that XMP.48 was active against the bacterial form and that all of the peptides tested were active against the L-phase variants. The rBPI42 dimer appeared to be about ten-fold more active on a molar basis than any of the peptides, while XMP. 13 appeared to be the least potent.

The experiment was repeated with BPI-derived peptides XMP. 14, XMP.2, XMP. 13, XMP.30, XMP.48 and XMP. 102 on the L-phase variant and penicillin-treated bacterial form of S. aureus. The results, shown in FIGS. 7 and 8, establish that XMP. 14 was completely inactive against the L-phase variant and XMP.2 was less active than XMP. 13 on both the L-phase variant and the penicillin-treated bacterial form.

B. EVALUATION IN A PLATE ASSAY AND A PROTEIN SYNTHESIS ASSAY WITH S. AUREUS L-PHASE VARIANT

Plate assays were performed to confirm the relative potency of rBPI₄₂ dimer and examine the time course of its bactericidal effects. Cells were grown to A₆₀₀ =0.3 (˜3×10⁸ cells/mL) in HI broth supplemented with NaCl to 0.4M and 5 mM CaCl₂, diluted 1: 100 into NaCl-supplemented PBS, incubated with rBPI₂₁, rBPI₅₀, rBPI₄₂ dimer or buffer, and plated on HI agar supplemented with NaCl and 1% horse serum. The results showed that rBPI₄₂ dimer caused up to a 75% reduction in colony forming units (CFUs) relative to buffer-treated cells at 2 hours. Incubation of cells with either buffer or 50 μg/mL rBPI₄₂ dimer for up to 5 hours before being plated produced optimal killing by dimer at 3 hours. In these assays, rBPI₄₂ dimer was consistently and significantly more potent than either of the monomeric forms, rBPI₅₀ or rBPI₂₁. To further extend these studies, the effect of these BPI protein products on protein synthesis of the S. aureus L-phase variant was examined. In these experiments, cells were grown to A₆₀₀ =0.5 (˜5×10⁸ cells/mL) in HI broth supplemented with NaCl to 0.4M and 5 mM CaCl₂, diluted 1: 100 into NaCl-supplemented HI broth and incubated with BPI protein product. Following incubation at 37° C., 0.4 μL of ¹⁴ C-amino acids was added and incubation was continued for 30 min. at 37° C. Incorporation of the ¹⁴ C-amino acids was linear for at least 30 min. Cells were treated with 3 mL cold 10% TCA to arrest protein synthesis and release free ¹⁴ C-amino acids from the cells. The cells were then applied to 0.45 μm-pore size HA Millipore filters (Millipore, Bedford, Mass.), washed once with 3 mL 10% TCA and then with 5 mL water. The filters were dried and counted, and the percentage of ¹⁴ C-amino acids incorporated relative to the control was calculated. An initial experiment to establish the optimum incubation time with 50 μg/mL rBPI₄₂ dimer demonstrated that maximal inhibition of protein synthesis (˜90%) was achieved by 2 hours. Incubation of cells for 2 hours with various concentrations of BPI protein product and then with ¹⁴ C-amino acids demonstrated that, as in other assays, rBPI₄₂ dimer was significantly more potent than the other BPI protein products. The rBPI₂₁ appeared to be less potent than rBPI₂₃ or rBPI₅₀ at inhibiting protein synthesis. Thus, patterns of growth inhibition parallel the patterns of inhibition of protein synthesis, with rBPI₄₂ dimer being most potent at inhibiting growth and protein synthesis.

C. EVALUATION IN A BROTH GROWTH INHIBITION ASSAY WITH S. AUREUS L-PHASE VARIANT

Broth growth inhibition assays were performed to determine the effect of a BPI protein product on the growth of S. aureus L-phase variant cells (ATCC Accession No. 19640). Initial attempts to grow L-phase variant cells in HI broth supplemented with horse serum resulted in poor growth or dumping. The effect of CaCl₂ concentration on the growth of L-phase variant cells was tested to determine whether the cells could be readily grown in media supplemented with CaCl₂ instead of horse serum. L-phase variant cells were inoculated from an overnight culture into 2 ml of HI broth supplemented with 3.5% NaCl, 1,000 units/ml penicillin G and various concentrations of calcium chloride. The cells were incubated at 37° C. on a rotary shaker and the optical density (A₆₀₀) was measured at set time points. The results, depicted in FIG. 9, show that 5-10 mM CaCl₂ maintains an optimal rate of cell growth. These results show that CaCl₂ can be substituted for serum to allow growth of the L-phase variants in broth.

L-phase variant cells of S. aureus were cultured overnight in HI broth supplemented with 3.5% NaCl, 10 mm CaCl₂ and 1,000 units/ml penicillin G. The cells were adjusted to an optical density of A₆₀₀ =˜0.025 (equivalent to ˜2.5×10⁷ cells/ml) in the same broth and 150 μl of cells was added to each well of a 96 well plate. Varying concentrations of rBPI₂₁, diluted in buffer containing 5 mM citrate and 150 mM NaCl to a total volume of 2.5 μl, were added to the wells. Control wells contained cells with dilution buffer only (no BPI protein product) or with 16 μg/ml lipopolysaccharide binding protein (LBP). The cells were incubated at 37° C. on a rotary shaker and cell growth (A₆₀₀) was followed over 7 hours. The results are shown in FIG. 10, which depicts the change in A₆₀₀ over time for varying concentrations of rBPI₂₁, LBP or control with no BPI protein product. The open squares indicate the control, the open diamonds indicate 20 μg/ml rBPI₂₁, the open circles indicate 10 μg/ml rBPI₂₁, the open triangles indicate 5 μg/ml rBPI₂₁, the diamonds with a cross inside indicate 1 μg/ml rBPI₂₁, and the open circle with a cross inside indicates 16 μg/ml LBP. The results indicate a dose-dependent inhibitory effect on cell growth by 7 hours, with the decrease in turbidity at 20 μg/ml rBPI₂₁ suggesting that some cell lysis has occurred.

Further experiments were performed to confirm this result and to examine the effect of CaCl₂ on growth inhibition of S. aureus L-phase variants by BPI protein product. The L-phase variant cells were grown overnight in HI broth supplemented with 3.5% NaCl, 10 mM CaCl₂ and 1,000 units/ml penicillin G, and were inoculated into 96 well plates to A₆₀₀ =˜0.02 in 100 μl of the same broth supplemented with 2.5, 5 or 10 mM CaCl₂. As a control, the BPI-susceptible gram-negative organism E. coli J5 was inoculated from an overnight culture into TYE broth (Difco, Detroit, Mich.). Two-fold serial dilutions of rBPI₂₁, diluted in 5 mm citrate and 150 mm NaCl to a total volume of 2.5 μl, were added to each well to yield final rBPI₂₁ concentrations of 50 to 0.77 μg/ml. The cells were incubated at 37° C. on a rotary shaker and cell growth as measured by was followed. The results of these experiments are shown in FIGS. 11, 12 and 13 and confirm that BPI protein product inhibits growth of the L-phase variant beginning at about 4 hours. The greatest inhibitory effect was observed for the cells grown in broth supplemented with 2.5 mM CaCl. Under these conditions, rBPI₂₁ at concentrations as low as 3.12 μg/ml inhibited growth and caused a decrease in absorbance. Higher concentrations of CaCl₂ (5 and 10 mM) appeared to inhibit the action of rBPI₂₁ on the cells. The results of the control experiment with E. coli J5 are shown in FIG. 14. By comparison the E. coli J5 cells were immediately inhibited by rBPI₂₁, but only at the three highest concentrations (50, 25 and 12.5 μg/ml).

EXAMPLE 4 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ON STREPTOCOCCUS SPECIES IN A RADIAL DIFFUSION ASSAY

Radial diffusion assays were conducted to evaluate the effect of the same BPI protein products tested in Example 3, rBPI₂₃, rBPI₂₁, rBPI₅₀, BPI-Immunoglobulin fusion product and rBPI₄₂ dimer, on S. pneumoniae and S. pyogenes. L-phase variants of S. pneumoniae (ATCC Accession No. 35088) were initially isolated by plating log-phase bacterial forms on L-phase variant media (HI broth supplemented with 3.5% NaCl, 10% horse serum, and 1000 units/ml penicillin G). The cells grew optimally on agar plates consisting of 1.3% Bacto-agar (Difco, Detroit, Mich.) and BPII broth supplemented with 2% NaCl and 10% inactivated horse serum. The L-phase variants were subsequently adapted to grow on this BPII medium lacking horse serum. Colonies of L-phase variants from the agar plates were resuspended into BPII broth supplemented with 2% NaCl and adjusted to A₆₀₀ =˜0.025. The cell suspension was added at a 1: 100 dilution to molten BPII agar medium containing 0.8% agarose and BHI broth supplemented with 2% NaCl and 1000 units/ml penicillin G, which was then allowed to solidify. Serial 2-fold dilutions of each BPI protein product in unformulated titrate buffer or formulated titrate buffer were added in 5 μl aliquots to 3-mm wells prepared in the plates. Unformulated citrate buffer was 20 mM citrate, pH 5.0, 150 mM NaCl for rBPI₂₃, or 5 mM titrate, pH 5.0, 150 mM NaCl for other BPI protein products. Formulated titrate buffer was 20 mM citrate, pH 5.0, 150 mM NaCl, with 0.1% poloxamer 188 and 0.002% polysorbate 80 for rBPI₂₃, or 5 mM titrate, pH 5.0, 150 mM NaCl with 0.2% poloxamer 188 and 0.002% polysorbate 80 for rBPI₂₁, or 5 mM titrate, pH 5.0, 150 mM NaCl with 0.1% poloxamer 188 and 0.002% polysorbate 80 for other BPI protein products. The corresponding formulated or unformulated buffer was also added to wells as a control. After 24 hours of incubation at 37° C., the plates were examined for zones of growth inhibition. There were no differences in the activity of BPI protien products in formulated vs. unformulated buffer.

The results of one representative assay, shown in FIG. 15, demonstrate that the L-phase variant of S. pneumoniae is susceptible to all of these BPI protein products, while the normal bacterial form is not (as shown above in Example 3). In the figure, a closed square signifies rBPI₂₁, an open circle indicates rBPI₂₃, an open triangle indicates rBPI₅₀, a closed inverted triangle indicates unglycosylated rBPI₅₀, an open square enclosing a plus-sign indicates BPI-Immunoglobulin fusion, and an open square signifies rBPI₄₂ dimer. These data show that rBPI₅₀ was the most potent inhibitor of growth, followed by rBPI₄₂ dimer and BPI-Immunoglobulin fusion.

Similar results were obtained when the experiment was repeated with penicillin-treated S. pneumoniae bacterial forms grown in the presence of osmotic protection. Log-phase cells growing in BHI broth were concentrated to A₆₀₀ =˜5.0, added to the same BHI agarose medium containing penicillin as above, tested with serial dilutions of the same BPI protein products as above, and incubated for 48-72 hours. These penicillin-treated bacteria were also observed to be susceptible to all tested BPI protein products.

The effects of BPI protein products on the bacterial form (ATCC No. 25663) and L-phase variant (ATCC No. 27080) of S. pyogenes were evaluated in this radial diffusion assay. The bacterial form was grown in BHI broth, and the L-phase variant was grown first on ATCC medium No. 608 and later in medium 608 supplemented with penicillin G and 10% heat inactivated horse serum. The cells were incorporated into molten BHI agarose (for the bacterial forms), or molten medium 608 agarose supplemented with penicillin G and 1% heat inactivated horse serum (for the L-phase variants), and various concentrations of rBPI₂₁, rBPI₂₃, rBPI₂₀ and rBPI₄₂ dimer were tested. As previously observed for the other bacterial species tested, none of the BPI protein products had an inhibitory effect at the concentrations tested on the S. pyogenes bacterial form. The L-phase variant was susceptible to all BPI protein products tested, rBPI₂₁, rBPI₂₃, rBPI₅₀, and rBPI₄₂ dimer, with rBPI₄₂ dimer and rBPI₂₃ being most potent and rBPI₅₀ least (this lower potency of rBPI₅₀ was not seen with other bacterial species).

The effects of additional BPI protein products, BPI-derived peptides, on the bacterial and L-phase variants of S. pneumoniae (ATCC No. 35088) and S. pyogenes (bacterial form ATCC No. 25663; L-phase variant ATCC No. 27080) were also evaluated in this radial diffusion assay. The results, depicted in FIGS. 16 and 17 (for S. pneumoniae L-phase variant and bacterial form, respectively) and FIGS. 18 and 19 (for S. pyogenes L-phase variant and bacterial form, respectively) demonstrate that, in general, these peptides inhibited growth of the L-phase variant in a similar manner to that observed with the S. aureus L-phase variant. Unlike S. aureus, the S. pyogenes bacterial form was susceptible to XMP.2, XMP. 13, XMP.30 and XMP. 102 as well as to XMP.48, while the S. pneumoniae bacterial form also appeared to be slightly susceptible to high concentrations of XMP.2, XMP. 13, XMP.48 and XMP. 102, but not XMP.30. However, when the experiment was repeated with XMP. 13 and XMP.30, the S. pneumoniae bacterial form appeared to be susceptible to XMP.30. As previously observed, only the L-phase variants were sensitive to rBPI₄₂ dimer.

EXAMPLE 5 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ON ENTEROCOCCUS FAECALIS L-PHASE VARIANTS IN A RADIAL DIFFUSION ASSAY

Radial diffusion assays were conducted to evaluate the effect of the same BPI protein products, used in Example 3, rBPI₂₃, rBPI₂₁, rBPI₅₀, BPI-Immunoglobulin fusion product and rBPI₄₂ dimer, on E. faecalis L-phase variants. L-phase variants of E. faecalis (ATCC Accession No. 4200) were initially isolated by plating log-phase bacterial forms on agar medium consisting of 1.3% Bacto-agar (Difco, Detroit, Mich.) and BHI broth supplemented with 0.5% yeast extract, 0.93% NaCl, 9.73% sucrose, 0.025% MgSO₄, 10% heat inactivated horse serum and 1000 units/ml penicillin G (Medium 607, ATCC, Rockville, Md.), but also grew well on BHI agar supplemented only with NaCl, sucrose and horse serum. The cells were subsequently adapted to growth on Medium 607 lacking horse serum. Colonies of L-phase variants from the agar plates were resuspended into Medium 607 and adjusted to A₆₀₀ =˜0.025. The cell suspension was added at a 1: 100 dilution to molten BHI agarose medium containing BHI broth, 0.93% NaCl, 9.73% sucrose and 1000 units/ml penicillin G, which was then allowed to solidify. Serial 2-fold dilutions of each BPI protein product in 5 μl were added to 3-mm wells prepared in the plates. After 24 hours of incubation, the plates were examined for zones of growth inhibition. The results of one representative assay, shown in FIG. 20, demonstrate that the L-phase variant of E. faecalis is susceptible to all of these BPI protein products, while the normal bacterial form is not (as shown above in Example 3). In the figure, a closed square signifies rBPI₂₁, an open circle indicates rBPI₂₃, an open triangle indicates rBPI₄₂ dimer, an open square enclosing a plus-sign indicates BPI-Immunoglobulin fusion, and an open diamond signifies rBPI₅₀ Unglycosylated rBPIs0 behaved in an identical manner to rBPI₅₀. These data show that rBPI₄₂ dimer and rBPI₅₀ were the most potent inhibitors of growth.

Similar results were obtained when the experiment was repeated with penicillin-treated E. faecalis bacterial forms grown in the presence of osmotic protection. Log-phase cells growing in BHI broth were concentrated to A₆₀₀ =˜5.0, added to the same BHI agarose medium (consisting of medium 607 with penicillin G but without horse serum as in the radial diffusion assay described above, tested with serial dilutions of rBPI₂₃, rBPI₂₃, BPI-Immunoglobulin fusion and rBPI₄₂ dimer, and incubated for 48-72 hours. These penicillin-treated bacteria were also observed to be susceptible to all tested BPI protein products. In this experiment there were greater differences in activity, with rBPI₄₂ dimer and BPI-Immunoglobulin fusion being the most potent inhibitors of growth.

EXAMPLE 6 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ON MYCOPLASMA IN RADIAL DIFFUSION ASSAYS

Mycoplasmas are prokaryotes that lack a cell wall. Many members of this group are naturally-occurring, non-pathogenic inhabitants of humans. Mycoplasma pneumoniae, however, is a major cause of primary atypical pneumonia. The susceptibility of L-phase variants to BPI protein products predicts that mycoplasmas also are susceptible.

Experiments were performed to evaluate the effects of BPI protein products on the mycoplasma Acholeplasma laidlawii, which is relatively unfastidious and does not require a CO₂ -enriched atmosphere to grow. Cells were grown overnight in HI broth supplemented with 1% PPLO serum fraction (Difco, Detroid, Mich.), incorporated into the same medium containing agarose, and used in radial diffusion assays as described above for L-phase variants. BPI protein products (rBPI₂₃, BPI₂₁, BPI₅₀, rBPI₄₂ dimer and purified XMP.30) were added to the wells and the plates were incubated at 37° C. for 2 days. The results, shown in FIG. 21, demonstrate that all of the BPI forms tested were effective against the Acholeplasma. For rBPI₂₃ and rBPI₂₁, a second zone of reduced growth was observed outside of the zone of complete inhibition.

The experiment was repeated with the same BPI protein products and XMP.13, XMP.2 and XMP.14. The results, depicted in FIG. 22, showed that XMP.13 and XMP.30 formed inhibition zones while XMP.2 and XMP.14 were not active at the concentrations tested. Additional experiments can be performed with this Acholeplasma species as well as other mycoplasma species.

EXAMPLE 7 IN VITRO EFFECTS OF LBP DERIVATIVES ON L-PHASE VARIANTS OF S. AUREUS, S. PNEUMONIAE AND E. FAECALIS IN A RADIAL DIFFUSION ASSAY

BPI protein products and LBP protein derivatives were evaluated in the radial diffusion assays described above for their effect on the growth of L-phase variants of various bacterial species, including S. aureus, S. pneumoniae and E. faecalis. The compounds evaluated were rBPI₅₀, rBPI₂₃, rBPI₂₁, mature LBP protein (LBP₅₀), LBP₂₅, LBP(1-197)/BPI(200-456) hybrid and BPI(1-199)/LBP(198-456) hybrid.

A plasmid encoding the LBP(1-197) BPI(200-456) hybrid was constructed by combining appropriate portions of the two molecules via a ClaI restriction site engineered into homologous locations in the DNA encoding the two molecules. The first step necessary for the construction of the mammalian expression vector pING4160 was the construction of two intermediate plasmids to introduce a ClaI restriction site by overlap extension PCR mutagenesis at the Ile-Asp at positions 197-198 in LBP (to generate plasmid pML127) and the Ile-Asp at positions 199-200 in BPI(to generate plasmid pML126). These were silent mutations which changed the nucleotide sequence only and not the amino acid sequence. The next step was to combine the amino terminal portion of LBP from pML127 with the carboxyl terminal of BPI from pML126 at the homologous ClaI sites to generate the intermediate plasmid pML128. The final step was then to subclone the LBP-BPI insert from pML126 into a mammalian expression vector to generate pING4160.

To construct plasmid pML127 (LBP with ClaI at 197-198), overlapping primers were designed to incorporate the changes necessary to encode a ClaI recognition site at the desired location. The template was pML125, a plasmid containing an insert encoding full length LBP. The primers were LBP-10, SEQ. ID. NO: 228, facing downstream, and LBP-11, SEQ. ID. NO: 229, facing upstream. Two separate PCR reactions were carried out with primer pairs LBP-Bsm, SEQ. ID. NO: 230, facing downstream, and LBP-11, to generate a 600 bp fragment that was then digested with StuI and ClaI to generate a 389 bp fragment, and primer pairs LBP-10 and LBP-8, SEQ. ID. NO: 231, facing upstream, to generate a 328 bp fragment that was then digested with ClaI and Bsu361 to generate a 148 bp fragment. The two resulting fragments were then ligated to the Bsu36I-StuI vector fragment from pML125 to generate the plasmid pML127.

To construct plasmid pML126 (BPI with ClaI at 199-200), overlapping primers were designed to incorporate the changes necessary to encode a ClaI recognition site at the desired location. The template was pML124, a plasmid containing an insert encoding full length BPI protein. The primers were BPI-63, SEQ. ID. NO: 232, facing downstream, and BPI-64, SEQ. ID. NO: 233, facing upstream. Two separate PCR reactions were carried out with primer pairs BPI-40, SEQ. ID. NO: 234, facing downstream, and BPI-64, to generate a 260 bp fragment that was then digested with PmlI and Clal to generate a 170 bp fragment, and primer pairs BPI-7, SEQ. ID. NO: 235, facing upstream, and BPI-63, to generate a 296 bp fragment that was then digested with ClaI and BstXI to generate a 215 bp fragment. The two resulting fragments were then ligated to the BstXI-PmlI vector fragment from pML124 to generate the plasmid pML126.

To construct pML128, the intermediate plasmid encoding the LBP(1-197)BPI(200-456) hybrid, the 620 bp HindllI-ClaI fragment encoding the amino terminal region of BPI in the plasmid pML126 was replaced with the corresponding HindllI-ClaI fragment from pML127 encoding the amino terminal region of LBP. To construct the mammalian expression vector pING4160, the 623 bp FspI-Bsu36I fragment of pML128 was ligated to the 361 bp SalI-FspI fragment from pING4539 (described in Gazzano-Santaro et al., U.S. Application Ser. No. 08/261,660 filed Jun. 17, 1994), which includes the LBP signal sequence, and the approximately 8630 bp Bsu36I-SalI fragment from pING4321. The latter fragment includes sequences encoding part of the carboxyl terminus of BPI and all the vector sequences, which include the CMV promoter and the light chain 3' transcription termination sequences (as described in Ammons et al., U.S. Application Ser. No. 08/212,132, filed Mar. 11, 1994).

A plasmid encoding the BPI(1-199) LBP(198-456) hybrid was constructed by combining appropriate portions of the two molecules via a ClaI restriction site engineered into homologous locations in the DNA encoding the two molecules. The intermediate plasmid encoding the BPI(1-199)LBP(198-456) hybrid, pML129, was constructed by replacing the 620 bp HindIII-Clal fragment encoding the amino terminal region of LBP in the plasmid pML127 with the corresponding HindIII-Clal fragment from pML126 encoding the amino terminal region of BPI protein.

To construct the mammalian expression vector pING4161, the 881 bp BstBI-SstII/T4 fragment of pML129, including part of the BPI and all of the LBP insert sequence, was ligated to the approximately 8755 XhoI/T4-BstBI fragment of pING4147 (described in Gazzano-Santaro et al., U.S. Application Ser. No. 08/261,660 filed Jun. 17, 1994). The latter fragment includes sequences encoding the signal sequence and part of the amino terminus of BPI and all the vector sequences, which include the CMV promoter and the light chain 3' transcription termination sequences.

To obtain the desired hybrid proteins, beads co-cultured with CHO-K1 cells transfected with pING4160 or pING4161 as described in U.S. patent Appl. Ser. No. 08/072,063 filed May 19, 1993, were washed with approximately 600 mls of 20 mM sodium acetate, pH 4.0 mM NaCl and then 600 mls of the same buffer containing 600 mM NaCl. Protein was eluted in two steps of 20 mM sodium acetate; the first with 1.0 M NaCl and the second with 1.5 M NaCl, with the majority of the desired protein eluting from the S-Sepharose in the 1.0M step. Fractions containing the protein were then pooled and diluted to a final NaCl concentration of 300 mM with the addition of MES buffer, to a final concentration of 20 mM ME-S, pH 5.0. The diluted material recovered from all cell harvests was combined, yielding a final volume of approximately 6.5 liters. This pooled eluate was applied to two columns arranged in a tandem fashion, the first being a 100 ml Q-Sepharose column and the second a 12 ml CM-Spherodex column. The flow through material, which contained the desired protein, was adjusted to pH 4.0 and loaded in three batches on to a 15 ml S-Sepharose column. Each time the column was washed with 20 mM MES, pH 4.0 200 mM NaCl and the bound protein recovered with a step elution of 20 mM MES, pH 5.5, 1.2M NaCl. The volume of the recovered protein was approximately 40 mls. This material was then run on a S-100 size exclusion column in 5 mM sodium citrate, pH 5.0, 150 mM NaCl. Column fractions were assayed using Coommassie stained SDS-PAGE and Western analysis using an anti-LBP primary antibody, and fractions containing the desired protein were pooled.

Radial diffusion assays on L-phase variants of S. pneumoniae (ATCC Accession No. 35088) and E. faecalis (ATCC Accession No. 4200) and the natural L-variant of S. aureus (ATCC Accession No. 19640) were performed as described above in Examples 3, 5 and 6, using varying concentrations of rBPI₅₀, LBP₅₀, LBP-BPI hybrid, and thaumatin as a control. LBP-BPI hybrid inhibited growth of S. aureus and S. pneumoniae L-phase variants, but not growth of E. faecalis L-phase variant. The LBP-BPI hybrid was especially potent against S. pneumoniae, with activity close to that of rBPI₅₀. Results of one representative assay on S. aureus L-phase variant using rBPI₂₃, rBPI₅₀, rBPI₂₁, rLBP₂₅, rLBP₅₀, LBP-BPI hybrid and BPI-LBP hybrid are displayed in FIG. 23. The LBP-BPI hybrid was bactericidal while rLBP₅₀ and rLBP₂₅ had little or no activity. The BPI-LBP hybrid was also active against the L-phase variant but less so than the LBP-BPI hybrid. As usual, rBPI₄₂ dimer was the most potent molecule against the L-phase variant. These results suggest that the presence of the BPI carboxyl terminus has enhanced the activity of rLBP₂₅ on prokaryotic membranes.

Further radial diffusion assays on these three organisms were conducted with LBP derivatives, LBP peptide 1-2, SEQ. ID NO: 236, and LBP peptide 2-1, SEQ. ID NO: 237, and with other BPI protein products, rBPI₄₂ dimer, XMP.2, XMP.13, XMP.14, XMP.3 and XMP.5. Results of representative assays on the S. aureus bacterial form and L-phase variant are displayed in FIGS. 24 and 25. At high concentrations, LBP peptide 1-2 had some bactericidal activity against the bacterial form. For the L-phase variant, LBP peptide 2-1 (amino acids 73-99 from domain II of LBP) was as potent as XMP.3 (amino acids 73-99 from domain II of BPI protein). XMP.5, XMP.13 and rBPI₄₂ dimer also displayed bactericidal activity against the L-phase variant, with rBPI₄₂ dimer being the most potent of all molecules tested. Additional assays were performed to evaluate the activity of LBP peptide 1-2 and LBP peptide 2-1 and other BPI protein products on the E. faecalis bacterial form, the S. pyogenes L-phase variant of Example 4, and the S. pneumoniae bacterial form and L-phase variant. LBP peptide 1-2 displayed some bactericidal activity against the two bacterial forms at high concentrations (300 pmol/well or more). LBP peptide 1-2 was as potent as rBPI₄₂ dimer against the S. pneumoniae L-phase variant, and was intermediate in potency between rBPI₄₂ dimer and XMP.13 for the S. pyogenes L-phase variant. LBP peptide 2-1 had no bactericidal activity against the tested bacterial forms or L-phase variants.

EXAMPLE 8 IN VITRO EFFECTS OF BPI-DERIVED PEPTIDES ON S. AUREUS IN A RADIAL DIFFUSION ASSAY

This example addresses in vitro screening of BPI protein products, specifically BPI-derived peptides, for antimicrobial activity in a radial diffusion assay. The peptides tested were all prepared according to the procedures described in parent U.S. patent application Ser. Nos. 08/209,762 and 08/183,222. Briefly summarized, peptides were prepared by solid phase peptide synthesis according to the methods of Merrifield, J. Am Chem. Soc. 85: 2149 (1963) and Merrifield et al. Anal. Chem., 38: 1905-1914 (1966) using an Applied Biosystems, Inc. Model 432 peptide synthesizer. Peptide design was based in principal part on the discovery of three functional domains present in the NH₂ -terminal region of the BPI holoprotein domain I comprising BPI amino acids from about position 17 to about position 45 (SEQ ID NO: 1); domain II comprising BPI amino acids from about position 65 to about 99 (SEQ ID NO: 6); and domain III comprising BPI amino acids from about position 142 to about position 169 (SEQ ID NO: 12). Peptides included sequences and subsequences of the domain sequences and variants thereof including linear and branched chain combination peptides with and without single or multiple amino acid (including atypical amino acid) substitutions as well as cyclized peptides and interdomain sequence peptides. Table 1 below sets out peptides derived from or based on BPI sequences, as identified by the peptide number with a prefix XMP or BPI (e.g., XMP.1 or BPI.1, XMP.2 or BPI.2, etc.), SEQ ID NO: , amino acid sequence based on reference to position within BPI and designation of amino acid substitutions and additions. Also set out in Table 1 are mass spectroscopy and HPLC estimates of purity of the peptides.

Overnight S. aureus cultures were diluted 1: 50 into fresh tryptic soy broth and incubated for 3 hours at 37° C. to attain log phase. Bacteria were pelleted at 3,000 rpm (1500 x g) for 5 minutes in a Beckman J-6M centrifuge. 5 ml of 10 mM sodium phosphate buffer, pH 7.4, was added and the suspension was recentrifuged. Supernatant was decanted and 5 ml of fresh buffer was added for an OD₅₇₀ determination. An OD₅₇₀ of 1.0 was considered equivalent to 5×10⁸ CFU/ml. Ten mL of molten underlayer agarose comprising 3% tryptic soy broth, 1% agarose (Pharmacia, Piscataway, N.J.), 0.02% Tween 20, and 10 mM sodium phosphate, at pH 7.4 was added to polystyrene tubes and maintained in a 56° C. water bath until the addition of bacteria. Tubes were cooled to approximately 45° C., bacteria were added to give a final concentration of 1×10⁶ CFU/ml, and the tubes were mixed again by inverting. The contents were poured into level square petri dishes and distributed evenly. The agarose solidified in less than 30 seconds and had a uniform thickness of about 1 mm. A series of wells were punched into the hardened agarose using a sterile 3 mm punch attached to a vacuum apparatus.

Peptides to be screened were 2-fold serially diluted in Dulbecco's PBS (D-PBS) starting from a concentration of approximately 1 mg/mL. Five μL of each dilution was added to each well and the plates were incubated at 37° C. for 3 hours. An overlayer of 10 mL of molten agarose comprising 6% tryptic soy broth, 1% agarose, and 10 mM sodium phosphate, pH 7.4, (at approximately 45° C.) was then added and plates were incubated overnight at 37° C. Following this overnight incubation, a dilute Coomassie solution was poured into the plates and allowed to stain for 24 hours.

Clear zones of growth inhibition around each well were measured with calipers. The actual area of growth inhibition (mm²) was calculated by subtracting the area of the well. Table 1 below sets out the results of the radial diffusion assays for tested peptides in terms of the number of μg or picomoles (pmol) of peptide required to establish a 30 mm² area of growth inhibition.

Peptides XMP.221 through XMP.281 (SEQ ID NOs: 166 through 26) are prepared and tested for anti-bacterial activity as described above.

                                      TABLE 1                                      __________________________________________________________________________                                            S. aureus                               Peptide #                   MS % HPLC %                                                                               μg/  pmol/                           (Seq. ID No.)                                                                           Protein AA Segment Purity                                                                              Purity                                                                               30 mm.sup.2 zone                                                                       30 mm.sup.2                     __________________________________________________________________________                                                    zone                            XMP.1 (4)                                                                               19-33              --   2 Peaks                                                                              N       N                               XMP.2 (7)                                                                               85-99              64   37.2  N       N                               XMP.3 (11)                                                                              73-99              --   17    X       X                               XMP.4 (3)                                                                               25-46              --   No Peak                                                                              N       N                               XMP.5 (67)                                                                              142-163            --   18    X       X                               XMP.7 (54)                                                                              (90-99) × 2  69   27    >5.00   >1,891                          XMP.8 (8)                                                                               90-99              79   Mixtures                                                                             X       X                               XMP.9 (51)                                                                              95-99,90-99        --   29    X       X                               XMP.10 (55, 65)                                                                         94-99, 90-99, 90-99 and                                                                           --   Mixture                                                                              X       X                                        95-99, 90-99, 90-99                                                   XMP.11 (13)                                                                             148-151,153-161    --   76    X       X                               XMP.12 (14)                                                                             141-169            --   26    X       X                               XMP.13 (15)                                                                             148-161            78   69    >5.00   >2,924                          XMP.13P (15)                                                                            148-161            100  98    X       X                               XMP.14 (2)                                                                              21-50              --   --    X       X                               XMP.15 (16)                                                                             85-99, A @ 85 (I)  66   57.6  X       X                               XMP.16 (17)                                                                             85-99, A @ 86 (K)  --   84.1  X       X                               XMP.17 (18)                                                                             85-99, A @ 87 (I)  86   77,67 X       X                               XMP.18 (19)                                                                             85-99, A @ 88 (S)  66   70    X       X                               XMP.19 (20)                                                                             85-99, A @ 89 (G)  --   69    X       X                               XMP.20 (21)                                                                             85-99, A @ 90 (K)  --   66    X       X                               XMP.21 (22)                                                                             85-99, A @ 91 (W)  68   66.8  X       X                               XMP.22 (23)                                                                             85-99, A @ 92 (K)  --   66    X       X                               XMP.23 (24)                                                                             85-99, A @ 94 (Q)  --   69    X       X                               XMP.24 (25)                                                                             85-99, A @ 95 (K)  --   67    X       X                               XMP.25 (26)                                                                             85-99, A @ 96 (R)  --   73    X       X                               XMP.26 (27)                                                                             85-99, A @ 97 (F)  --   73    X       X                               XMP.27 (28)                                                                             85-99, A @ 98 (L)  --   65    X       X                               XMP.28 (29)                                                                             85-99, A @ 99 (K)  --   80    X       X                               XMP.29 (56)                                                                             (148-161) × 2                                                                               --   26    >5.00   >1,469                          XMP.30 (52)                                                                             90-99,148-161      --   21    3.68    1,216                           XMP.30-P (52)                                                                           90-99,148-161      95   98    X       X                               XMP.31 (33)                                                                             148-161, A @ 148 (K)                                                                              --   68    X       X                               XMP.32 (34)                                                                             148-161, A @ 149 (S)                                                                              --   70    X       X                               XMP.33 (35)                                                                             148-161, A @ 150 (K)                                                                              --   58    X       X                               XMP.34 (36)                                                                             148-161, A @ 151 (V)                                                                              --   51    X       X                               XMP.35 (37)                                                                             148-161, A @ 152 (G)                                                                              --   72    X       X                               XMP.36 (38)                                                                             148-161, A @ 153 (W)                                                                              --   64    X       X                               XMP.37 (39)                                                                             148-161, A @ 154 (L)                                                                              --   51    X       X                               XMP.38 (40)                                                                             148-161, A @ 155 (1)                                                                              --   70    X       X                               XMP.39 (41)                                                                             148-161, A @ 156 (Q)                                                                              --   53    X       X                               XMP.40 (42)                                                                             148-161, A @ 157 (L)                                                                              --   53    X       X                               XMP.41 (43)                                                                             148-161, A @ 158 (F)                                                                              --   63    X       X                               XMP.42 (44)                                                                             148-161, A @ 159 (H)                                                                              --   59    X       X                               XMP.43 (45)                                                                             148-161, A @ 160 (K)                                                                              --   53    X       X                               XMP.44 (46)                                                                             148-161, A @ 161 (K)                                                                              --   70    X       X                               XMP.45 (31)                                                                             85-99, A @ 94(Q) & 95(K)                                                                          71   46    >5.00   >1,697                          XMP.46 (57)                                                                             (90-99) × 2, A @ 1st 94(Q) & 95(K)                                                          67   47    >5.00   >1,811                          XMP.47 (58)                                                                             (90-99) × 2, A @ 2d 94(Q) & 95(K)                                                           57   34    >5.00   >2,461                          XMP.48 (59)                                                                             (90-99) × 2, A @ both 94(Q) & 95(K)                                                         68   33    >5.00   >1,390                          XMP.54 (5)                                                                              21-35              --   --    X       X                               XMP.55 (61)                                                                             152-172            --   28    >5.00   >1,592                          XMP.56 (47)                                                                             85-99, K @ 94 (Q) &                                                                               --   55    N       N                                        Q @ 95(K)                                                             XMP.57 (99)                                                                             Cys 85-99 Cys      50   Mixture                                                                              N       N                               XMP.58 (9)                                                                              Cys-85-99          49   25.7  N       N                               XMP.59 (30)                                                                             85-99, A @ 90(K) & 92(K)                                                                          56   30    N       N                               XMP.60 (32)                                                                             85-99, A @ 86(K) & 99(K)                                                                          57   78    N       N                               XMP.61 (48)                                                                             85-99, F @ 91(W)   60   60    N       N                               XMP.63 (53)                                                                             85-99, 148-161     38   31.0  >5.00   >1,006                          XMP.65 Rd (68)                                                                          Cys-85-99-Cys      41   22, 34                                                                               N       N                               XMP.65 Ox (10)                                                                          Cys-85-99-Cys      --   No Peak                                                                              >5.00   >3,118                          XMP.66 (49)                                                                             85-99, W.sub.D @ 91(W)                                                                            --   70    N       N                               XMP.67 (50)                                                                             85-99, β-(1-naphthyl)-A                                                                      65   52    N       N                                        @ 91                                                                  XMP.69 (60)                                                                             [90-99, A @ 94 (Q) &                                                                              44   54,40 3.83    1,058                                    95 (K)] × 3                                                     XMP.70 (63)                                                                             85-99, β-(3-pyridyl)-A                                                                       66   54    N       N                                        @ 91                                                                  XMP.71 (64)                                                                             A.sub.D -A.sub.D -85-99                                                                           --   60    N       N                               XMP.72 (66)                                                                             85-99, β-(3-pyridyl)-A                                                                       --   52    N       N                                        @ 97 (F)                                                              XMP.73 (62)                                                                             85-99, F @ 95 (K)  --   44, 39                                                                               >5.00   >1,811                          XMP.74 (70)                                                                             148-161, 90-99     --   29    >5.00   >2,148                          XMP.75 (100)                                                                            IKKRAISFLGKKWQK (2-mixed)                                                                         --   32    >5.00   >2,031                          XMP.76 (71)                                                                             85-99, F, @ 95 (K) 53   39    N       N                               XMP.77 (72)                                                                             85-99, W @ 95 (K)  --   38    3.15    1,684                           XMP.79 (73)                                                                             85-99, K @ 94 (Q)  --   48    N       N                               XMP.80 (74)                                                                             85-99, β-(1-naphthyl)-A                                                                      71   44    4.82    2,533                                    @ 95 (K)                                                              XMP.81 (75)                                                                             85-99, F @ 94 (Q)  44   33, 35                                                                               >5.00   >2,345                          XMP.82 (76)                                                                             148-161, W @ 158 (F)                                                                              82   58    >5.00   >1,198                          XMP.83 (77)                                                                             148-161, β(1-naphthyl)-A                                                                     85   63    >5.00   >2,034                                   @ 153 (W)                                                             XMP.84 (78)                                                                             85-99, β-(1-naphthyl) A @                                                                    64   50    >5.00   >2,017                                   91 (W) & F @ 95 (K)                                                   XMP.85 (79)                                                                             148-161, L @ 152 (G)                                                                              79   74    >5.00   >1,881                          XMP.86 (80)                                                                             148-161, L @ 156 (Q)                                                                              69   51    >5.00   >2,048                          XMP.87 (81)                                                                             148-161, L @ 159 (H)                                                                              79   63    >5.00   >1,536                          XMP.88 (82)                                                                             85-99, F @ 94 (Q)  62   50    >5.00   >2,380                                   & 95 (K)                                                              XMP.89 (84)                                                                             85-99, β-(1-naphthyl) A @                                                                    66   50    >5.00   >1,882                                   91 (W) & F @ 94 (Q)                                                   XMP.90 (85)                                                                             85-99, β-(1-naphthyl) A @ 91 (W),                                                            70   63    >5.00   >1,863                                   F @ 94 (Q) & 95 (K)                                                   XMP.91 (86)                                                                             148-161, F @ 156   --   31    N       N                                        (Q)                                                                   XMP.92 (87)                                                                             148-161, K @ 156 (Q)                                                                              --   50    N       N                               XMP.93 (88)                                                                             85-99 148-161 β-(1-naphthyl) A                                                               72   38    >5.00   >980                                     @ 91 (W), F @ 95 (K)                                                  XMP.94 (89)                                                                             148-161, F @ 159   --   59    >5.00   >922                            XMP.95 (90)                                                                             148-161, F @ 152 (G)                                                                              --   57    N       N                               XMP.96 (101)                                                                            148-161, F @ 161 (K)                                                                              --   60    >5.00   >2,048                          XMP.97 (92)                                                                             148-161, K @ 152 (G)                                                                              --   67    N       N                               XMP.98 (83)                                                                             90-99, β-(1-naphthyl) A @ 91 (W),                                                            69   31    N       N                                        F @ 95 (K) + 148-161 F @ 156 (Q)                                      XMP.99 (93)                                                                             [90-99, W @ 95     --   --    >5.00   >1,064                                   (K)] × 3                                                        XMP.100 (94)                                                                            148-161, K @ 152 (G) &                                                                            --   61    N       N                                        156 (Q)                                                               XMP.101 (95)                                                                            (148-161) × 2[K @ 152(G) & 156(Q),                                                          --   16    >5.00   >993                                     F @ 159(H) & 161(K)]                                                  XMP.102 (96)                                                                            90-99 (F @ 95(K)) + 148-161 L @ 156                                                               --   16    N       N                                        (Q)                                                                   XMP.103 (102)                                                                           85-99, W @ 94 (Q)  --   28    >5.00   >2,703                          XMP.104 (103)                                                                           148-161, S @ 156 (Q)                                                                              --   34    >5.00   >5,569                          XMP.105 (104)                                                                           85-99, β-(1-naphthyl)-A @ 94 (Q)                                                             58   43    >5.00   >1,843                          XMP.106 (105)                                                                           148-161, T @ 156 (Q)                                                                              --   26    N       N                               XMP.107 (106)                                                                           148-161, W @ 159 (H)                                                                              --   55    N       N                               XMP.108 (107)                                                                           148-161, W @ 161 (K)                                                                              --   50    >5.00   >3,219                          XMP.109 (108)                                                                           148-161, β(1-naphthyl)-A                                                                     --   41    N       N                                        @ 158 (F)                                                             XMP.110 (109)                                                                           148-161, β(1-naphthyl)-A                                                                     --   56    N       N                                        @ 159 (H)                                                             XMP.111 (110)                                                                           148-161, β(1-naphthyl)-A                                                                     --   73    >5.00   >2,809                                   @ 161 (K)                                                             XMP.112 (111)                                                                           85-99, β(1-naphthyl)A                                                                        --   56    N       N                                        & 91 (W) & 95 (K)                                                     XMP.113 (112)                                                                           148-161, F @ 157 (L)                                                                              --   46    N       N                               XMP.114 (113)                                                                           KWQLRSKGKIKIFKA    --   17    N       N                               XMP.116 (114)                                                                           148-161, K @ 152 (G), β(1-naphthyl)A                                                         --   72    N       N                                        @ 153 (W)                                                             XMP.119 (115)                                                                           85-99, β(1-naphthyl)A @ 91 (W)                                                               --   77    >5.00   >2,617                                   & 94 (K)                                                              XMP.120 (116)                                                                           85-99, K @ 97 (F)  --   52    N       N                               XMP.121 (117)                                                                           85-99, β(1-naphthyl)A @ 94 (Q)                                                               65   35    >5.00   >2,540                                   & 95 (K)                                                              XMP.122 (118)                                                                           85-99, β(1-naphthyl)A @ 91 (W),                                                              --   46    >5.00   >2,526                                   94(Q) & 95 (K)                                                        XMP.123 (119)                                                                           148-161, p-Amino-F @ 156 (Q)                                                                      --   64    N       N                               XMP.124 (120)                                                                           148-161, K @ 152(G), W @                                                                          --   67    N       N                                        158 (F)                                                               XMP.125 (121)                                                                           148-161, Y @ 156 (Q)                                                                              --   54    N       N                               XMP.126 (122)                                                                           148-161, W.sub.D @ 153 (W)                                                                        66   54    N       N                               XMP.127 (123)                                                                           148-161, F @ 153 (W)                                                                              65   63    N       N                               XMP.128 (124)                                                                           148-161 F.sub.D @ 153 (W)                                                                         63   51    N       N                               XMP.129 (125)                                                                           148-161, 1-β(1-naphthyl)A.sub.D @                                                            24   28    N       N                                        153 (W)                                                               XMP.130 (126)                                                                           148-161, 2-β(1-naphthyl)A @                                                                  55   80    N       N                                        153 (W)                                                               XMT.131 (127)                                                                           148-161, 2-β(1-naphthyl)A.sub.D @                                                            75   60    N       N                                        153 (W)                                                               XMP.132 (128)                                                                           148-161, Pyr-A @ 153 (W)                                                                          49   50    N       N                               XMP.133 (129)                                                                           148-161, p-Amino-F @ 153 (W)                                                                      63   47    N       N                               XMP.134 (130)                                                                           148-161, p-Amino-F @ 152 (G)                                                                      --   68    N       N                               XMP.135 (131)                                                                           148-161, K @ 153 (W)                                                                              --   70    N       N                               XMP.136 (132)                                                                           85-99, E @ 95 (K)  --   50    N       N                               XMP.137 (133)                                                                           Cys-148-161-Cys    --   28    X       X                               XMP.138 (134)                                                                           148-161, K @ 152 (G), F @ 153 (W)                                                                 --   61    N       N                               XMP.139 (135)                                                                           148-161, Y @ 153 (W)                                                                              --   60    N       N                               XMP.140 (136)                                                                           90-99 β(1-naphthyl)A @ 94 (Q)                                                                --   26    >5.00   >1,601                                   & 95 (K) + 104                                                        XMP.141 (137)                                                                           85-99, W @ 97 (F)  --   50    N       N                               XMP.142 (138)                                                                           148-161, W @ 157 (L)                                                                              --   57    N       N                               XMP.143 (139)                                                                           148-161, β(1-naphthy)A                                                                       --   65    N       N                                        @ 157 (L)                                                             XMP.144 (140)                                                                           148-161, Cyclohexyl-A                                                                             --   60    N       N                                        @ 153 (W)                                                             XMP.145 (141)                                                                           90-99, β(1-naphthyl)A @ 94(Q)                                                                --   20    X       X                                        & 95(K) + 148-161                                                              148-161, β(1-naphthyl)A @                                                                    --   53    N       N                               XMP.146 (142)                                                                           59(H) & 161(K)                                                        XMP.147 (143)                                                                           85-99 K @ 96 (R)   --   55    N       N                               XMP.148 (144)                                                                           148-161, β(1-naphthyl)A                                                                      --   62    N       N                                        @ 153 (W) & 159 (H)                                                   XMP.149 (147)                                                                           KWKVFKKIEK + 148-161                                                                              --   27    N       N                               XMP.150 (148)                                                                           KWAFAKKQKKRLKRQWLKKF                                                                              --   Mixture                                                                              N       N                               XMP.151 (55)                                                                            94-99, 90-99, 90-99                                                                               --   14    N       N                               XMP.152 (65)                                                                            95-99, 90-99, 90-99                                                                               --   21    N       N                               XMP.153 (149)                                                                           (90-99) × 3  --   17    N       N                               XMP.154 (150)                                                                           (90-99) × 2, β(1-naphthyl) A                                                           --   31    >5.00   >1,796                                   @ 1st 94 (Q) & 95 (K)                                                 XMP.155 (151)                                                                           (90-99) × 2, β(1-naphthyl) A                                                           --   23    >5.00   >1,796                                   @ 2nd 94 (Q) & 94 (K)                                                 XMP.156 (152)                                                                           (90-99) × 2, β(1-naphthyl) A                                                           --   38    N       N                                        @ both 94 (Q) & 95 (K)                                                XMP.157 (153)                                                                           (90-99, β(1-naphthyl) A                                                                      --   38    N       N                                        @ 94 (Q) & 95 (K)) × 3                                          OXMP.158 (154)                                                                          85-99, 148-161, β(1-naphthyl) A                                                              --   16    N       N                                        @ 94 (Q) & 95 (K)                                                     XMP.159 (155)                                                                           (90-99, β(1-naphthyl) A                                                                      --   23    >5.00   >1,590                                   @ 91 (W) & 95 (K)) + 82                                               XMP.160 (156)                                                                           (90-99) × 2, β(1-naphthyl) A @                                                         --   32    >5.00   >1,782                                   both 91. (W) & 95 (K)                                                 XMP.161 (157)                                                                           148-161, K @ 152 (G) & A @ 153 (W)                                                                --   75    >5.00   >2,999                          XMP.162 (158)                                                                           90-99, 148-161, W @ 95 (K)                                                                        --   21    N       N                               XMP.163 (159)                                                                           (90-99) × 2, W @ both 95 (K)                                                                --   Mixture                                                                              >5.00   >1,810                          XMP.164 (160)                                                                           (90-99) × 2, β(1-naphthyl) A @ both                                                    --   46    >5.00   >1,796                                   94 (Q)                                                                XMP.165 (161)                                                                           (90-99, β(1-naphthyl A @ 91 (W)                                                              --   72    >5.00   >1,847                                   & F @ 95 (K)) × 2                                               XMP.166 (162)                                                                           148-161, V @ 153 (W)                                                                              --   68    N       N                               XMP.167 (163)                                                                           90-97              --   56    N       N                               XMP.168 (164)                                                                           C- 90-101-C        --   13    N       N                               XMP.169 (165)                                                                           C-90-97-C          --   20    >5.00   >4,974                          XMP.170 (227)                                                                           90-101             --   60    N       N                               __________________________________________________________________________      X = Not tested                                                                 N = No detectable activity up to 5 μg/well                            

EXAMPLE 9 IN VITRO EFFECTS OF A VARIETY OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF STREPTOCOCCUS PNEUMONIAE

This experiment evaluated the in vitro growth inhibitory effects of a variety of BPI protein products, alone or in combination with antibiotics, on clinical isolates of Streptococcus pneumoniae (from Baxter Microscan® library, Sacramento, Calif.). The BPI protein products' direct growth inhibitory effect and effect on the antibiotic susceptibility of the organisms was determined using Microscan® panel plates (Baxter Diagnostics, Inc., Deerfield, Ill.) that allow simultaneous determination of minimum inhibitory concentrations for a number of different antibiotics. Any other antimicrobial panel systems known in the art, such as the Pasco (DIFCO, Detroit, Mich.) and Alamar (Alamar, Sacramento, Calif.) systems, may be used instead of the Microscan® system to assay for activity. Control assays performed with the Microscan® panel plates confirmed that the formulation buffer for rBPI₂₁ (without rBPI₂₁) had no effect on the antibiotic susceptibility of a variety of organisms: S. pneumoniae (Microscan library no. 31573), S. pyogenes (Group A) (30403), S. bovis (008-010), S. aureus (052-106) and E. faecalis (011-066).

The antimicrobial susceptibility tests performed on the Microscan® panel plates are miniaturizations of the broth dilution susceptibility test. Antimicrobial agents are serially diluted in Mueller-Hinton broth (supplemented with calcium and magnesium, or with sodium chloride for oxacillin, or with thymidine phosphorylase for trimethoprim, sulfamethoxazole and trimethoprim/sulfamethoxazole) to concentrations bridging the range of clinical interest. One well on the 96-well Microscan® plate is a growth control well that contains dehydrated broth only. The remaining wells contain dehydrated broth and antibiotic (or broth and biochemical reagent indicator), which is rehydrated to the desired concentration by inoculation of a standardized suspension of test organism. The chromogenic biochemical agent indicators are used to identify and characterize the species of bacteria based on detection of pH changes and substrate utilization. After incubation overnight, the minimum inhibitory concentration (MIC) of an antibiotic for the test organism is determined by observing the well with the lowest concentration of the antibiotic that shows inhibition of growth. Two types of panel plates were utilized to test these gram-positive organisms: the Pos Combo Panel Type 6, and the Pos MIC Panel Type 6 (both available from Baxter Diagnostics, Inc., Deerfield, Ill.). The concentrations of antibiotics tested in each panel are shown in Tables 2 and 3 below.

                                      TABLE 2                                      __________________________________________________________________________     Antibiotic Concentrations (μg/mL) Tested in Pos Combo Panel Type 6          Plate                                                                          __________________________________________________________________________     Trimethoprim/Sulfamethoxazole                                                                  2/38                                                                              1                                                           Rifampin        2  1                                                           Imipenem        8  4                                                           Cephalothin     16 8                                                           Amoxicillin/K Clavulanate                                                                      16/8                                                                              8/4                                                                               4/2                                                      Cefotaxime      32 8                                                           Ciprofloxacin   2  1                                                           Norfloxacin     8  4                                                           Nitrofurantoin  64 32                                                          Gentamicin      6  4  2  1                                                     Clindamycin     2  1  0.5                                                                               0.25                                                  Cefazolin       16 8  4  2                                                     Erythomycin     4  2  1  0.5                                                                               0.25                                               Vancomycin      16 8  4  2                                                     Penicillin      8  4  2  1  0.5                                                                               0.25                                                                              0.12                                                                              0.06                                                                              0.03                                   Ampicillin      8  4  2  1  0.5                                                                               0.25                                                                              0.12                                         Oxacillin       4  2  1  0.5                                                   Tetracycline    128                                                                               8  4  2                                                     __________________________________________________________________________

                                      TABLE 3                                      __________________________________________________________________________     Antibiotic Concentrations (μg/mL) Tested in Pos MIC Panel Type 6            __________________________________________________________________________     Plate                                                                          Erythromycin    4  2  1  0.5                                                                               0.25                                               Vancomycin      16 8  4  2                                                     Clindamycin     2  1  0.5                                                                               0.25                                                  Cefazolin       16 8  4  2                                                     Cephalothin     16 8  4  2                                                     Cefuroxime      16 8  4  2                                                     Ceftriaxone     32 16 8  4                                                     Chloramphenicol 16 8  4                                                        Cefotaxime      32 16 8  4                                                     Ticarcillin/K Clavulanate                                                                      8  4  2  1                                                     Imipenem        8  4  2  1                                                     Gentamicin      6  4  2  1                                                     Amoxicillin/K Clavulante                                                                       16/8                                                                              8/4                                                                               4/2                                                      Ampicillin/Sulbactam                                                                           16/8                                                                              8/4                                                         Rifampin        2  1                                                           Trimethoprim/Sulfamethoxazole                                                                  2/38                                                           Norfloxacin     8  4                                                           Penicillin      8  4  2  1  0.5                                                                               0.25                                                                              0.12                                                                              0.06                                                                              0.03                                   Ampicillin      8  4  2  1  0.5                                                                               0.25                                                                              0.12                                         Oxacillin       4  2  1  0.5                                                   Tetracycline    128                                                                               8  4  2                                                     Nitrofurantoin  64 32                                                          Ciprofloxacin   2  1                                                           Amikacin        32 16                                                          Sulfamethoxazole                                                                               256                                                            __________________________________________________________________________

For each experimental run, the following procedure was performed: The organism was streaked onto 5% sheep blood agar plates (Remel, Lenexa, Kans.) and incubated for 18-24 hours overnight. Well-isolated colonies from the plates were emulsified in 3 ml of sterile Inoculum Water (catalog no. B1015-2, MicroScan® system, Baxter Diagnostics, Inc., Deerfield, Ill.) to a final turbidity equivalent to 0.5 McFarland Barium Sulfate standard. This cell suspension was vortexed for 2 to 3 seconds and 100 μl was transferred to glass tubes containing 25 ml of Inoculum Water with Pluronic-D (catalog no. B1015-7, MicroScan® system, Baxter Diagnostics, Inc., Deerfield, Ill.) (hereinafter "Pluronic Inoculum Water"), or 25 ml of Pluronic Inoculum Water into which the BPI protein product (in formulation buffer) had been diluted to the desired concentration, generally between 0 and 64 μg/mL.

The 25 ml of this inoculum containing the BPI protein product was mixed by inversion and poured into a tray. The inoculum was drawn up into a manual 96-well pipetting system (RENOK™ rehydrator-inoculator system, Baxter Health Care Corporation, West Sacramento, Calif.) designed for use with the Microscan® panel plates, and 110 μl of the inoculum was delivered to each well of a Microscan® Pos Combo Panel Type 6 or Pos MIC Panel Type 6 plate. When added to the wells, this inoculum achieves a final bacterial concentration of 4×10⁵ to 7×10⁵ CFU/ml. The panel plates were then incubated at 35° C. for 15-24 hours and read visually for cell growth.

No growth was defined as a slight whiteness in the well or a clear broth. Growth appeared as turbidity which could take the form of a white haze throughout the well, a white button in the center of the well, or a fine granule growth throughout the well. All wells were read against a black indirectly lighted background. Visual results of the biochemical reactions were read into a database for bacterial identification. The MICs for each antibiotic tested were determined by identifying the lowest concentration of antibiotic which inhibited visible growth.

Table 4 below displays a summary of the results of the antibiotic screening panels, reported for each strain tested as the MIC of the tested antibiotics at varying concentrations of rBPI₂₁. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 4A. Stars after the antibiotic name in the "antibiotic tested" column indicate whether rBPI₂₁ reversed the resistance of that organism to the antibiotic tested (two stars) or converted an indifferent MIC into a susceptible MIC (one star). These data show that rBPI₂₁ converted one ampicillin-resistant strain of S. pneumoniae into ampicillin-susceptible (the other tested strains were already sensitive to ampicillin) and increased the susceptibility of other S. pneumoniae strains to amikacin, ampicillin, gentamicin and penicillin.

Table 4 also shows the presence or absence of bacterial growth in the growth control wells, which contained varying concentrations of rBPI₂₁ alone without antibiotic. A "G" signifies growth at the tested concentration, while "NG" signifies no growth. These results indicate that S. pneumoniae is a BPI-susceptible organism; rBPI₂₁ was directly bactericidal/growth inhibitory for all tested isolates of S. pneumoniae at a concentration of 2 μg/ml.

Additional screening of S. pneumoniae strains was conducted with a variety of BPI protein products, rBPI₂₁, rBPI₂₃, rBPI₅₀ and rBPI₄₂ dimer. Table 4X below displays a summary of the results of the antibiotic screening panels, reported for each strain tested as the MIC of the tested antibiotics at varying concentrations of the indicated BPI protein product. Results are only reported if antibiotic susceptibility was altered.

                  TABLE 4                                                          ______________________________________                                         EFFECTS OF rBPI.sub.21 ± ANTIBIOTICS ON                                     Streptococcus pneumoniae                                                                  Minimum Inhibitory Concentration of                                            Antibiotic (μg/mL)                                               Micro-           With    With  With  With  With                                scan             0       0.5   2     8     16                                  Library                                                                               Antibiotic                                                                               μg/mL                                                                               μg/mL                                                                             μg/mL                                                                             μg/mL                                                                             μg/mL                            ID No. Tested    rBPI.sub.21                                                                            rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                         ______________________________________                                         31573  --        G       G     NG    NG    NG                                         Ampici-   8       <0.12 <0.12 <0.12 <0.12                                      llin**                                                                         Penicillin*                                                                              0.5     <0.03 <0.03 <0.03 <0.03                                      Genta-    6       2     <1    <1    <1                                         micin*                                                                  31582  --        G       --    NG    NG    NG                                         Ampicillin*                                                                              0.5     --    <0.12 <0.12 <0.12                                      Penicillin                                                                               0.06    --    <0.03 <0.03 <0.03                                      Gentamicin                                                                               <1      --    <1    <1    <1                                  15972  --        G       G     NG    NG    NG                                         Ampicillin                                                                               <0.12   <0.12 <0.12 <0.12 <0.12                                      Penicillin                                                                               <0.03   <0.03 <0.03 <0.03 <0.03                                      Gentamicin                                                                               4       2     <1    <1    <1                                         Amikacin* 32      --    --    --    <16                                 015-035                                                                               --        G       G     NG    NG    NG                                         Ampicillin                                                                               <0.12   <0.12 <0.12 <0.12 <0.12                                      Penicillin                                                                               <0.03   <0.03 <0.03 <0.03 <0.03                                      Gentamicin                                                                               4       <1    <1    <1    <1                                  015-034                                                                               --        G       --    NG    NG    NG                                         Ampicillin                                                                               <0.12   --    <0.12 <0.12 <0.12                                      Penicillin                                                                               <0.03   --    <0.03 <0.03 <0.03                                      Gentamicin                                                                               <1      --    <1    <1    <1                                  ______________________________________                                                          Minimum Inhibitory                                                             Concentration of                                                               Antibiotic (μg/mL)                                         Organism                               With                                    Name                   With     With   16                                      (Microspan ®                                                                        Antibiotic    0 μg/mL                                                                              4 μg/mL                                                                            μg/mL                                ID No.)  Tested        rBPI.sub.21                                                                             rBPI.sub.21                                                                           rBPI.sub.21                             ______________________________________                                         S. pnuemoniae                                                                           --            G        NG     NG                                      1293     Erythromycin* 1        <.25   <.25                                             Clindamycin** >2       <.25   <.25                                             Cefuroxime    4        <2     <2                                               Penicillin*   1        <.03   <.03                                             Chloramphenicol*                                                                             16       <4     <4                                               Gentamicin    4        <1     <1                                               Ampicillin    1        <.12   <.12                                             Norfloxacin** >8       <4     <4                                               Ciprofloxacin*                                                                               2        <1     <1                                               Amikacin*     32       <16    <16                                     S. pnuemoniae                                                                           --            G        NG     NG                                      130      Penicillin    .06      <.03   <.03                                             Gentamicin*   6        <1     <1                                               Trimethoprim/ >2       <2     <2                                               Sulfamethoxazole**                                                             Amikacin**    >32      <16    <16                                     S. pnuemoniae                                                                           --            G        NG     NG                                      145      Cephalothin   4        <2     <2                                               Penicillin*   0.5      <.03   <.03                                             Gentamicin    4        <1     <1                                               Ampicillin    1        <.12   <.12                                             Trimethoprim/ >2       <2     <2                                               Sulfamethoxazole**                                                    S. pnuemoniae                                                                           --            G        NG     NG                                      152      Gentamicin    4        <1     <1                                               Amikacin*     32       <16    <16                                     S. pnuemoniae                                                                           --            G        G      NG                                      154      Erythromycin* 1        <.25   <.25                                             Cefuroxime    4        <2     <2                                               Penicillin*   1        .12    <.03                                             Chlorampheicol*                                                                              16       8      <4                                               Gentamicin    4        <1     <1                                               Ampicillin    2        0.5    <.12                                    ______________________________________                                          *BPI protein product reversed antibiotic indifference                          **BPI protein product reversed antibiotic resistance                     

                  TABLE 4A                                                         ______________________________________                                         Susceptibility ranges for S. pnuemoniae                                                MIC (μg/mL)                                                         Antibiotic                                                                               Resistant  Intermediate                                                                              Susceptible                                    ______________________________________                                         Amikacin  >32        32         ≦16                                     Ampicillin                                                                               ≧4  0.25-2     ≦0.12                                   Gentamicin                                                                               >6          6         ≦4                                      Penicillin                                                                               ≧2  0.12-1     ≦0.06                                   ______________________________________                                    

                                      TABLE 4X                                     __________________________________________________________________________     EFFECTS OF BPI PROTEIN PRODUCTS ± ANTIBIOTICS                                               Minimum Inhibitory Concentration of Antibiotic (μg/mL)                      With:                                                          Organism                        4               16                             Name            0   4   4   4   μg/mL                                                                           16  16  16  μg/mL                       (Microspan ®                                                                      Antibiotic                                                                              μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           rBPI.sub.42                                                                        μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           rBPI.sub.42                    ID No.)                                                                               Tested   BPI rBPI.sub.23                                                                        rBPI.sub.21                                                                        BPI.sub.50                                                                         dimer                                                                              rBPI.sub.23                                                                        rBPI.sub.21                                                                        rBPI.sub.50                                                                        dimer                          __________________________________________________________________________     S.     --       G   G   NG  G   G   G   NG  G   NG                             pneumoniae                                                                            Erythromycin*                                                                           1   <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                          1293   Clindamycin**                                                                           >2  <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                                                              <0.25                                 Cefuroxime                                                                              4   <2  <2  4   <2  <2  <2  <2  <2                                    Penicillin*                                                                             1   0.12                                                                               <0.03                                                                              0.5 <0.03                                                                              0.5 <0.03                                                                              0.5 <0.03                                 Chloramphenicol                                                                         16  <4  <4  8   <4  8   <4  <4  <4                                    Gentamicin                                                                              4   <1  <1  2   <1  4   <1  2   <1                                    Ampicillin                                                                              1   <0.12                                                                              <0.12                                                                              2   0.5 1   <0.12                                                                              1   1                                     Norfloxacin                                                                             >8  <4  <4  <4  <4  <4  <4  <4  <4                                    Trimethoprim/                                                                           >2  <2  <2  >2  <2  >2  <2  <2  <2                                    Sulfamethoxazole                                                               Ciprofloxacin                                                                           2   <1  <1  2   <1  <1  <1  <1  <1                                    Amikacin 32  <16 <16 <16 <16 <16 <16 <16 <16                            S      --       G   NG  NG  G   NG  G   NG  NG  NG                             pneumoniae                                                                            Penicillin                                                                              0.06                                                                               <0.03                                                                              <0.03                                                                              <0.03                                                                              <0.03                                                                              <0.03                                                                              <0.03                                                                              <0.03                                                                              <0.03                          130    Gentamicin                                                                              6   <1  <1  6   <1  4   <1  <1  <1                                    Trimethoprim/                                                                           >2  <2  <2  <2  <2  >2  <2  <2  <2                                    Sulfamethoxazole                                                               Amikacin >32 <16 <16 >32 <16 32  <16 <16 <16                            S.     --       G   G   NG  G   NG  G   NG  G   NG                             pnuemoniae                                                                            Cefazolin                                                                               <2  <2  <2  <2  <2  4   <2  <2  <2                             145    Cephalothin                                                                             4   <2  <2  <2  <2  4   <2  <2  <2                                    Penicillin*                                                                             0.5 0.06                                                                               <0.03                                                                              0.5 1   1   <0.03                                                                              <0.03                                                                              1                                     Gentamicin                                                                              4   <1  <1  2   <1  2   <1  <1  <1                                    Ampicillin                                                                              1   0.25                                                                               <0.12                                                                              0.5 0.5 2   <0.12                                                                              <0.12                                                                              2                                     Trimethoprim/                                                                           >2  <2  <2  <2  <2  >2  <2  <2  >2                                    Sulfamethoxazole                                                        S.     --       G   G   NG  G   G   G   NG  G   NG                             pneumoniae                                                                            Gentamicin                                                                              4   4   <1  <1  2   4   <1  <1  <1                             152    Amikacin*                                                                               32  <16 <16 32  <16 <16 <16 <16 <16                            S.     --       G   G   G   G   NG  G   NG  G   G                              pneumoniae                                                                            Erythromycin*                                                                           1   <0.25                                                                              <0.25                                                                              0.5 <0.25                                                                              <0.25                                                                              <0.25                                                                              1   <0.25                          154    Cefuroxime                                                                              4   <2  <2  4   <2  <2  <2  <2  <2                                    Penicillin*                                                                             1   0.25                                                                               0.12                                                                               1   <0.03                                                                              0.5 <0.03                                                                              0.5 0.25                                  Chloramphenicol*                                                                        16  8   8   8   <4  8   <4  8   <4                                    Gentamicin                                                                              4   2   <1  2   <1  4   <1  4   2                                     Ampicillin**                                                                            2   0.5 0.5 1   <0.12                                                                              2   <0.12                                                                              2   <0.12                                 Amikacin 32  <16 <16 32  <16 <16 <16 <16 <16                            S.     Penicillin                                                                              0.12                                                                               <0.03                                                                              <0.03                                                                              0.12                                                                               0.06                                                                               0.06                                                                               0.06                                                                               0.12                                                                               <.03                           pneumoniae                                                                            Gentamicin                                                                              >6  >6  6   >6  >6  >6  >6  >6  6                              141    Trimethoprim/                                                                           >2  <2  <2  >2  <2  <2  <2  <2  <2                                    Sulfa-                                                                         methoxazole**                                                                  Amikacin >32 >32 >32 >32 >32 >32 >32 >32 32                             S.     Cefazolin                                                                               4   <2  <2  4   <2  <2  <2  4   <2                             pneumoniae                                                                            Cephalothin                                                                             4   <2  <2  4   <2  4   <2  4   <2                             145    Penicillin*                                                                             0.5 <0.03                                                                              <0.03                                                                              0.5 <0.03                                                                              1   <0.03                                                                              0.5 <0.03                                 Gentamicin                                                                              4   4   <1  4   <1  6   <1  6   <1                                    Ampicillin**                                                                            1   <0.12                                                                              <0.12                                                                              2   <0.12                                                                              2   <0.12                                                                              2   <0.12                                 Trimethoprim/                                                                           >2  <2  <2  >2  <2  >2  <2  >2  <2                                    Sulfa-                                                                         methoxazole**                                                                  Amikacin*                                                                               32  <16 <16 <16 <16 32  <16 32  <16                            __________________________________________________________________________

EXAMPLE 10

IN VITRO EFFECTS OF BPI PROTEIN PRODUCT ALOE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM STREPTOCOCCUS PYOGENES (GROUP A)

The direct growth inhibitory effect of a BPI protein product, rBPI₂₁, on various strains of Streptococcus pyogenes, also known as Group A strep, was evaluated using the Microscan® screening assay of Example 9. The effect of rBPI₂₁ on the antibiotic susceptibility of these strains was also evaluated in the same assay. Assays were conducted on clinical isolates of S. pyogenes (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the BPI protein product and antibiotic screening panels, reported as MICs (μg/ml) of the tested antibiotic at varying concentrations of rBPI₂₁ μg/ml), is shown in Table 5 below. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility or growth. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 5A. Table 5 also shows the presence or absence of bacterial growth ("G" or "NG") in the control well, which contains varying concentrations of rBPI₂₁ alone without antibiotic.

These results indicate that rBPI₂₁, alone had a direct bactericidal/growth inhibitory effect on one strain of S. pyogenes (Group A) at a concentration as low as 2 μg/ml, on three of the strains at 8 μg/ml, and on the remaining strain at 32 μg/ml. The data also show that BPI protein product increased the antibiotic susceptibility of Strep. pyogenes (Group A) strains to norfloxacin and gentamicin.

                                      TABLE 5                                      __________________________________________________________________________     EFFECTS OF rBPI.sub.21 ± ANTIBIOTICS ON Streptococcus pyogenes (Group       A)                                                                                          Minimum Inhibitory Concentration of Antibiotic (μg/mL)         Microscan    With  With  With  With  With  With                                Library                                                                              Antibiotic                                                                            0 μg/mL                                                                           0.5 μg/mL                                                                         2 μg/mL                                                                           8 μg/mL                                                                           16 μg/mL                                                                          32 μg/mL                         ID No.                                                                               Tested rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          L rBPI.sub.21                       __________________________________________________________________________     30847 --     G     G     G     NG    NG    NG                                        Norfloxacin                                                                           <4    <4    <4    <4    <4    <4                                        Gentamicin                                                                            2     2     <1    <1    <1    <1                                  002-002                                                                              --     G     G     G     G     G     NG                                        Norfloxacin                                                                           <4    <4    <4    <4    <4    <4                                        Gentamicin                                                                            2     <1    <1    <1    <1    <1                                  19035 --     G     G     G     NG    G     NG                                        Norfloxacin                                                                           <4    <4    <4    <4    <4    <4                                  30403 --     G     G     NG    NG    NG    NG                                        Norfloxacin*                                                                          8     <4    <4    <4    <4    <4                                  30413 --     G     G     G     NG    G     NG                                        Norfloxacin*                                                                          8     <4    <4    <4    <4    <4                                  __________________________________________________________________________      *BPI protein product reversed antibiotic indifference                    

                  TABLE 5A                                                         ______________________________________                                         Susceptibility ranges for S. pyogenes (Group A)                                        MIC (μg/mL)                                                         Antibiotic                                                                               Resistant  Intermediate                                                                              Susceptible                                    ______________________________________                                         Gentamicin                                                                               >6         6          ≦4                                      Norfloxacin                                                                              >8         8          ≦4                                      ______________________________________                                    

EXAMPLE 11 IN VITRO EFFECTS OF BPI PROTEIN PRODUCT ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM STREPTOCOCCUS AGALACTIAE (GROUP B)

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of various strains of Streptococcus agalactiae, also known as Group B strep, was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI₂₁ on these strains was also evaluated in the same assay. Assays were conducted on clinical isolates of S. agalactiae (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the antibiotic screening panels, reported as MICs (μg/ml) of the antibiotic tested, is shown in Table 6 below. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 6A. These results show that BPI protein product reversed the resistance of one strain to gentamicin, and increased the susceptibility of other strains to ciprofloxacin, gentamicin, norfloxacin. These strains were not susceptible to BPI protein product alone, without antibiotic.

                                      TABLE 6                                      __________________________________________________________________________     EFFECTS OF rBPI.sub.21 ± ANTIBIOTICS ON                                     Streptococcus agalactiae (Group B)                                                          Minimum Inhibitory Concentration of Antibiotic (μg/mL)         Microscan    With  With  With  With  With                                      Library                                                                              Antibiotic                                                                            0 μg/mL                                                                           0.5 μg/mL                                                                         2 μg/mL                                                                           8 μg/mL                                                                           16 μg/mL                               ID No.                                                                               Tested rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                               __________________________________________________________________________     003-044                                                                              Gentamicin*                                                                           >6    6     4     6     6                                               Ciprofloxacin                                                                         <1    <1    <1    <1    <1                                              Norfloxacin                                                                           <4    <4    <4    <4    <4                                        003-049                                                                              Gentamicin**                                                                          >6    4     4     4     4                                               Cipro- 2     2     <1    <1    <1                                              floxacin*                                                                      Norfloxacin                                                                           >8    8     8     8     8                                         30851 Gentamicin                                                                            4     <1    2     2     <1                                              Ciprofloxacin                                                                         <1    <1    <1    <1    <1                                              Norfloxacin*                                                                          8     <4    <4    <4    <4                                        31947 Gentamicin                                                                            2     4     <1    <1    <1                                              Cipro- 2     <1    <1    <1    <1                                              floxacin*                                                                      Norfloxacin                                                                           8     8     8     8     8                                         30911 Gentamicin                                                                            4     <1    4     <1    <1                                              Ciprofloxacin                                                                         <1    <1    <1    <1    <1                                              Norfloxacin                                                                           <4    <4    <4    <4    <4                                        __________________________________________________________________________      *BPI protein reversed antibiotic indifference                                  **BPI protein product reversed antibiotic resistance                     

                  TABLE 6A                                                         ______________________________________                                         Susceptibility ranges for S. agalactiae (Group B)                                       MIC (μg/mL)                                                        Antibiotic Resistant  Intermediate                                                                              Susceptible                                   ______________________________________                                         Ciprofloxacin                                                                             >2         2          ≦1                                     Gentamicin >6         6          ≦4                                     Norfloxacin                                                                               >8         8          ≦4                                     ______________________________________                                    

EXAMPLE 12 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM STREPTOCOCCUS BOVIS

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of various strains of Streptococcus bovis was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI21 on these strains was also evaluated in the same assay. Assays were conducted on clinical isolates of S. bovis (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the antibiotic screening panels, reported as MICs (μg/ml) of the antibiotic tested, is shown in Table 7 below. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 7A. These results show that the BPI protein product reversed the resistance of one strain to ciprofloxacin, three strains to norfloxacin, and two strains to tetracycline. The results show that BPI protein product also increased the susceptibility of some strains to ciprofloxacin, gentamicin, norfloxacin, and tetracycline. These strains were not susceptible to BPI protein product alone, without antibiotic.

                                      TABLE 7                                      __________________________________________________________________________     EFFECTS OF rBPI.sub.21 ± ANTIBIOTICS ON Streptococcus bovis                                Minimum Inhibitory Concentration of Antibiotic (μg/mL)       Microscan      With  With  With  With  With                                    Library                                                                               Antibiotic                                                                             0 μg/mL                                                                           0.5 μg/mL                                                                         2 μg/mL                                                                           8 μg/mL                                                                           16 μg/mL                             ID No. Tested  rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                             __________________________________________________________________________     ATCC#  Tetracycline*                                                                          128   8     8     4     8                                       49147  Gentamicin                                                                             2     2     <1    <1    <1                                             Cirpofloxacin                                                                          <1    <1    <1    <1    <1                                             Norfloxacin*                                                                           8     <4    <4    <4    <4                                      008-009                                                                               Tetracycline**                                                                         128   4     8     4     <2                                             Gentamicin                                                                             2     2     2     <1    <1                                             Ciprofloxacin*                                                                         2     <1    <1    <1    <1                                             Norfloxacin**                                                                          >8    8     8     8     <4                                      008-010                                                                               Tetracycline**                                                                         128   128   128   8     4                                              Gentamicin                                                                             4     4     2     2     <1                                             Ciprofloxacin*                                                                         2     2     <1    <1    <1                                             Norfloxacin**                                                                          >8    8     >8    <4    <4                                      008-011                                                                               Tetracycline                                                                           <2    <2    <2    <2    <2                                             Gentamicin                                                                             2     2     <1    <1    <1                                             Ciprofloxacin*                                                                         2     <1    2     <1    <1                                             Norfloxacin**                                                                          >8    8     8     8     <4                                      008-012                                                                               Tetracycline                                                                           128   128   128   128   8                                              Gentamicin                                                                             4     2     <1    2     <1                                             Ciprofloxacin**                                                                        >2    2     <1    2     <1                                             Norfloxacin                                                                            >8    8     8     8     8                                       __________________________________________________________________________      *BPI protein product reversed antibiotic indifference                          **BPI protein product reversed antibiotic resistance                     

                  TABLE 7A                                                         ______________________________________                                         Susceptibility ranges for S. bovis                                                      MIC (μg/mL)                                                        Antibiotic Resistant  Intermediate                                                                              Susceptibe                                    ______________________________________                                         Ciprofloxacin                                                                             >2         2          ≦1                                     Gentamicin >6         6          ≦4                                     Norfloxacin                                                                               >8         8          ≦4                                     Tetracycline                                                                              ≧128                                                                               8          ≦4                                     ______________________________________                                    

EXAMPLE 13 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM ENTEROCOCCUS FAECALIS

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of various strains of Enterococcus faecalis was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI₂₁ on these strains was also evaluated in the same assay. Assays were conducted on clinical isolates of E. faecalis (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the antibiotic screening panels, reported as MICs (μg/ml) of the antibiotic tested, is shown in Table 8 below. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 8A. These results show that BPI protein product reversed the resistance of three strains to ciprofloxacin and two strains to norfloxacin. The BPI protein product also increased the susceptibility of some E. faecalis strains to ampicillin, ciprofloxacin, erythromycin, noffloxacin, penicillin, rifampin, and tetracycline. These strains were not susceptible to BPI protein product alone, without antibiotic.

                                      TABLE 8                                      __________________________________________________________________________     EFFECTS OF rBPI.sub.21 ± ANTIBIOTICS ON Enterococcus faecalis                              Minimum Inhibitory Concentration of Antibiotic                                 (μg/mL)                                                      Microscan      With  With  With  With                                          Library                                                                               Antibiotic                                                                             0 μg/mL                                                                           2 μg/mL                                                                           8 μg/mL                                                                           32 μg/mL                                   ID No. Tested  rBPI.sup.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                   __________________________________________________________________________     011-070                                                                               Penicillin                                                                             2     2     1     1                                                    Tetracycline                                                                           128   128   128   8                                             16967  Rifampin                                                                               >2    >2    >2    2                                                    Ciprofloxacin**                                                                        >2    2     2     <1                                                   Norfloxacin**                                                                          >8    8     8     <4                                                   Penicillin                                                                             2     2     2     1                                                    Erythromycin                                                                           4     2     2     2                                             19010  Pencillin                                                                              8     8     8     4                                                    Ampicillin                                                                             4     4     4     2                                             011-028                                                                               Penicillin                                                                             2     2     2     1                                                    Ciprofloxacin*                                                                         2     <1    <1    <1                                                   Ampicillin                                                                             1     <0.5  <0.5  <0.5                                          011-001                                                                               Ciprofloxacin**                                                                        >2    <1    <1    <1                                                   Norfloxacin                                                                            <4    <4    <4    <4                                            011-002                                                                               Penicillin                                                                             2     1     1     1                                                    Ampicillin                                                                             2     0.5   0.5   0.5                                           011-003                                                                               Rifampin                                                                               >2    >2    >2    2                                                    Penicillin                                                                             2     2     2     1                                                    Norfloxacin*                                                                           8     8     8     <4                                                   Ampicillin                                                                             1     1     0.5   0.5                                           011-004                                                                               Penicillin                                                                             8     8     8     4                                                    Ampicillin                                                                             4     4     2     2                                             011-005                                                                               Penicillin                                                                             2     2     2     1                                                    Ampicillin                                                                             1     0.5   0.5   0.5                                           011-006                                                                               Penicillin                                                                             2     2     2     1                                                    Ampicillin                                                                             1     1     1     0.5                                           011-066                                                                               Ciprofloxacin**                                                                        >2    <1    <1    <1                                                   Norfloxacin**                                                                          >8    <4    <4    <4                                                   Ampicillin                                                                             1     1     0.5   0.5                                           __________________________________________________________________________      *BPI protein product reversed antibiotic indifference                          **BPI protein product reversed antibiotic resistance                     

                  TABLE 8A                                                         ______________________________________                                         Susceptibility ranges for E. faecalis                                                   MIC (μg/mL)                                                        Antibiotic Resistant  Intermediate                                                                              Susceptible                                   ______________________________________                                         Ampicillin >8                    ≦8                                     Ciprofloxacin                                                                             >2         2          ≦1                                     Erythromycin                                                                              >4         1-4        ≦0.5                                   Norfloxacin                                                                               >8         8          ≦4                                     Penicillin >8                    ≦8                                     Rifampin   >2         2          ≦1                                     Tetracycline                                                                              ≧128                                                                               8          ≦4                                     ______________________________________                                    

EXAMPLE 14 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM ENTEROCOCCUS FAECIUM

The effect of a variety of BPI protein products on the antibiotic susceptibility of various strains of Enterococcus faecium was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of the BPI protein products on these strains was also evaluated in the same assay. Assays were conducted on clinical isolates of E. faecium (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the antibiotic screening panels, reported as MICs μg/ml) of the antibiotic tested at varying concentrations of rBPI₂₁, is shown in Table 9 below. Results are only reported where rBPI₂₁, altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 9A. These results show that rBPI₂₁, reversed the resistance of five strains to amoxicillin/K clavulanate, two strains to cefazolin, two strains to ciprofloxacin, two strains to erythromycin, one strain to norfloxacin, two strains to oxacillin, two strains to rifampin, one strain to tetracycline, and one strain to vancomycin. The rBPI₂₁ also increased the susceptibility of some E. faecium strains to amoxicillin/K clavulanate, cefotaxime, ciprofloxacin, erythromycin, penicillin, rifampin, and vancomycin. These strains were not susceptible to BPI protein product alone, without antibiotic.

Additional screening of an E. faecium strain (Microscan® ID no. 15773) was conducted with a variety of BPI protein products, rBPI₂₁, rBPI₂₃, rBPI₅₀ and rBPI₄₂ dimer. Table 9X below displays a summary of the results of the antibiotic screening panels, reported as the MIC of the tested antibiotics at varying concentrations of the indicated BPI protein product. Results are only reported if antibiotic susceptibility was altered.

                                      TABLE 9                                      __________________________________________________________________________     EFFECTS ON rBPI.sub.21 ± ANTIBIOTICS ON Enterococcus faecium                               Minimum Inhibitory Concentration of Antibiotic                                 (μg/mL)                                                      Microscan      With  With  With  With                                          Library                                                                               Antibiotic                                                                             0 μg/mL                                                                           2 μg/mL                                                                           8 μg/mL                                                                           32 μg/mL                                   ID No. Tested  rBPI.sup.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                                   __________________________________________________________________________     17611  Rifampin**                                                                             >2    >2    2     <1                                                   Ciprofloxacin**                                                                        >2    2     2     <1                                                   Augmentin.sup.a                                                                        >16   16    16    16                                            16866  Ciprofloxacin*                                                                         2     2     <1    <1                                                   Tetracycline**                                                                         128   128   128   4                                             20076  Rifampin**                                                                             >2    2     2     <1                                                   Erythromycin*                                                                          4     2     1     <0.25                                                Augmentin.sup.a **                                                                     16    8     8     <4                                                   Oxacillin**                                                                            >4    <0.5  <0.5  <0.5                                          012-048                                                                               Rifampin                                                                               >2    >2    2     2                                                    Ciprofloxacin**                                                                        >2    >2    <1    <1                                                   Penicillin                                                                             0.25  0.25  0.25  0.12                                                 Cefotaxime*                                                                            32    <8    <8    <8                                                   Cefazolin**                                                                            >16   16    8     8                                             15773  Rifampin*                                                                              2     2     <1    <1                                                   Ciprofloxacin*                                                                         2     <1    <1    <1                                                   Erythromycin**                                                                         >4    <0.25 <0.25 <0.25                                                Augmentin.sup.a **                                                                     16    <4    <4    <4                                                   Vancomycin                                                                             4     4     <2    <2                                            012-001                                                                               Rifampin                                                                               >2    2     >2    2                                                    Augmentin.sup.a **                                                                     16    8     8     8                                             012-002                                                                               Rifampin                                                                               >2    >2    >2    2                                                    Oxacillin**                                                                            >4    1     <0.5  <0.5                                                 Vancomycin**                                                                           >16   >16   >16   <2                                                   Norfloxacin**                                                                          >8    <4    <4    <4                                                   Cefazolin**                                                                            >16   >16   >16   8                                             012-003                                                                               Rifampin                                                                               <1    <1    <1    <1                                                   Augmentin.sup.a **                                                                     16    8     8     8                                             012-004                                                                               Rifampin*                                                                              2     2     <1    <1                                                   Ciprofloxacin*                                                                         2     <1    <1    <1                                                   Augmentin.sup.a **                                                                     16    <4    <4    <4                                                   Vancomycin                                                                             4     4     <2    <2                                                   Erythromycin**                                                                         >4    0.5   <0.25 <0.25                                         __________________________________________________________________________      .sup.a Augmentin is Amoxicillin K/Clavulanate                                  *BPI protein product reversed antibiotic indifference                          **BPI protein product reversed antibiotic resistance                     

                  TABLE 9A                                                         ______________________________________                                         Susceptibility ranges for E. faecium                                                     MIC (μg/mL)                                                       Antibiotic  Resistant Intermediate                                                                               Susceptible                                  ______________________________________                                         Amoxicillin ≧16/8          ≦8/4                                  K/Clavulanate                                                                  Cefazolin   >16       16          ≦8                                    Cefotaxime  >32       16-32       ≦8                                    Ciprofloxacin                                                                              >2        2           ≦1                                    Erythromycin                                                                               >4        1-4         ≦0.5                                  Norfloxacin >8        8           ≦4                                    Oxacillin   ≧4             ≦2                                    (staph only)                                                                   Penicillin  >8                    ≦8                                    Rifampin    >2        2           ≦1                                    Tetracycline                                                                               ≧128                                                                              8           ≦4                                    Vancomycin  >16        8-16       ≦4                                    ______________________________________                                    

                                      TABLE 9X                                     __________________________________________________________________________     EFFECTS OF BPI PROTEIN PRODUCTS ± ANTIBIOTICS                                                Minimum Inhibitory Concentration of Antibiotic                                 (μg/mL) With:                                              Organism                          4                 16                         Name             0   4   4    4   μg/mL                                                                           16   16   16  μg/mL                   (Microscan ®                                                                      Antibiotic                                                                               μg/mL                                                                           μg/mL                                                                           μg/mL                                                                            μg/mL                                                                           rBPI.sub.42                                                                        μg/mL                                                                            μg/mL                                                                            μg/mL                                                                           rBPI.sub.42                ID No.)                                                                               Tested    BPI rBPI.sub.21                                                                        rBPI.sub.23                                                                         rBPI.sub.50                                                                        dimer                                                                              rBPI.sub.21                                                                         rBPI.sub.23                                                                         rBPI.sub.50                                                                        dimer                      __________________________________________________________________________     E. faecium                                                                            Erythromycin**                                                                           >4  1   <0.25                                                                               >4  >4  <0.25                                                                               <0.25                                                                               >4  <0.25                      15773  Vancomycin                                                                               4   4   4    4   4   <2   4    4   <2                                Cefotaxime                                                                               >32 >32 >32  >32 >32 >32  32   >32 >32                               Ticarcillin/K                                                                            >8  >8  >8   >8  >8  >8   8    >8  >8                                Clavulanate                                                                    Gentamicin**                                                                             >6  4   4    >6  >6  6    6    >6  4                                 Amoxicillin/K                                                                            16  8   <4   16  8   <4   <4   8   <4                                Clavulanate                                                                    Ampicillin/                                                                              16  <8  <8   16  <8  <8   <8   <8  <8                                Sulbactam                                                                      Rifampin  >2  2   2    >2  2   <1   <1   >2  <1                                Ciprofloxacin*                                                                           2   <1  <1   2   <1  <1   <1   <1  <1                                Amikacin* 32  <16 <16  32  32  <16  32   32  <16                               Sulfamethoxazole**                                                                       >256                                                                               <256                                                                               <256 >256                                                                               >256                                                                               <256 >256 >256                                                                               <256                       __________________________________________________________________________

EXAMPLE 15 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON OTHER GRAM-POSITIVE ENTEROCOCCUS SPECIES

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of a variety of Enterococcus species was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI₂₁ on these species was also evaluated in the same assay. Assays were conducted on clinical isolates of Enterococcus species (from Baxter Microscan® library, Sacramento, Calif.).

A summary of the results of the antibiotic screening panels, reported as MICs (μg/ml) of the antibiotic tested, is shown in Table 10 below. Results are only reported where rBPI₂₁ altered the antibiotic susceptibility. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 10A. These results show that for E. gallinarum, BPI protein product reversed resistance to cephalothin, cefazolin, ciprofloxacin and norfloxacin, and increased susceptibility to ampicillin, penicillin and rifampin. For E. raffinosus, BPI protein product reversed resistance to ampicillin and increased susceptibility to imipenem. For E. casseliflavus, BPI protein product increased susceptibility to ampicillin, penicillin, oxacillin, cephalothin, and cefazolin. For E. durans, BPI protein product increased susceptibility to ampicillin and rifampin. For E. avium, BPI protein product increased susceptibility to ampicillin, penicillin, cefotaxime and ciprofloxacin, and oxacillin. These Enterococcus species were not susceptible to BPI protein product alone, without antibiotic.

                  TABLE 10                                                         ______________________________________                                         EFFECTS OF rBPI.sub.21 ±                                                    ANTIBIOTICS ON Enterococus SPECIES                                                            Minimum Inhibitory Concen-                                                     tration of Antibiotic (μg/mL)                                                     With    With  With  With                                  Microscan            0       2     8     32                                    Library  Antibiotic  μg/mL                                                                               μg/mL                                                                             μg/mL                                                                             μg/mL                              ID No.   Tested      rBPI.sup.21                                                                            rBPI.sub.21                                                                          rBPI.sub.21                                                                          rBPI.sub.21                           ______________________________________                                         031-009  Ampicillin  1       1     0.5   0.5                                   ( E.     Penicillin  1       0.5   0.5   0.25                                  gallinarum)                                                                             Rifampin    >2      >2    >2    2                                              Cephalothin**                                                                              >16     <8    <8    <8                                             Cefazolin** >16     8     8     4                                              Ciprofloxacin**                                                                            >2      2     <1    <1                                             Norfloxacin**                                                                              >8      8     8     <4                                    16206    Ampicillin**                                                                               >8      >8    >8    8                                     (E. raffinosus)                                                                         Imipenem    >8      >8    >8    8                                     030-008 and                                                                             Ampicillin  1       0.5   0.25  0.25                                  030-001.sup.a                                                                           Penicillin  1       0.25  0.25  0.12                                  ( E.     Oxacillin   >4      >4    >4    4                                     casseliflavus)                                                                          Cephalothin*                                                                               16      <8    <8    <8                                             Cefazolin*  16      8     4     4                                     17543    Ampicillin  1       0.5   0.5   0.5                                   (E. durans)                                                                             Rifampin    >2      2     2     2                                     31413    Ampicillin  0.5     0.5   0.5   <0.12                                 (E. avium)                                                                              Penicillin  1       1     1     0.5                                            Oxacillin** >4      >4    4     0.5                                            Cefotaxime* 32      <8    <8    <88                                            Ciprofloxacin*                                                                             2       <1    <1    <1                                    ______________________________________                                          .sup.1 Two strains of E. casseliflavus were tested; both strains gave          identical results.                                                       

                  TABLE 10A                                                        ______________________________________                                         Susceptibility ranges for Enterococcus species                                          MIC (μg/mL)                                                        Antibiotic Resistant  Intermediate                                                                              Susceptible                                   ______________________________________                                         Ampicillin >8                    ≦8                                     Cefazolin  >16        16         ≦8                                     Cefotaxime >32        16-32      ≦8                                     Cephalothin                                                                               >16        16         ≦8                                     Ciprofloxacin                                                                             >2         2          ≦1                                     Imipenem   >8         8          ≦4                                     Norfloxacin                                                                               >8         8          ≦4                                     Oxacillin  ≧4             ≦2                                     Penicillin >8                    ≦8                                     Rifampin   >2         2          ≦1                                     ______________________________________                                    

EXAMPLE 16 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM STAPHYLOCOCCUS AUREUS

The effect of BPI protein products on the antibiotic susceptibility of a variety of S. aureus species was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of BPI protein products on these species was also evaluated in the same assay. Assays were conducted on the following clinical isolates of S. aureus (from Baxter Microscan® library, Sacramento, Calif.): 052-066, 052-106, 052-107, 052-108, 052-184, 052-219, 052-230, 14288, 20720, 29213 (ATCC No.), 32075 and 32073.

These strains of S. aureus were tested to determine the MIC₉₀ for each antibiotic in the panel at varying concentrations of rBPI₂₁. The MIC₉₀ is defined as the lowest concentration of antibiotic that inhibits the growth of 90% of all S. aureus isolates tested. Results are reported in Table 11 below, and applicable antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) appear in Table 11A.

The data show that rBPI₂₁ was able to reduce the S. aureus MIC₉₀ values for eight of twenty-five antibiotics evaluated: amoxicillin/K clavulanate (Augmentin), cefotaxime, ceftriaxone, cefuroxime, cephalothin, chloramphenicol, imipenem and sulfamethoxazole. Dashes in Table 11 indicate that no concentration of antibiotic tested was able to inhibit growth of 90% of all tested strains. None of the S. aureus strains tested were susceptible to rBPI₂₁ alone without antibiotic.

Comparable results obtained from testing of the BPI protein product rBPI₂₁ on S. aureus (Microscan® ID no. 052-106) in the Pasco system confirm the effect of BPI protein products on the antibiotic susceptibility of gram-positive organisms.

Additional screening of this S. aureus strain (Microscan®ID no. 052-106) was conducted with a variety of BPI protein products, rBPI₂₁, rBPI₂₃, rBPI₅₀ and rBPI₄₂ dimer. Table 11X below displays a summary of the results of the antibiotic screening panels, reported as the MIC of the tested antibiotics at varying concentrations of the indicated BPI protein product. Results are only reported if antibiotic susceptibility was altered.

                  TABLE 11                                                         ______________________________________                                         Effect of rBPI.sub.21 on MIC.sub.90 of Antibiotics for Staphylococcus          aureus                                                                                     MIC.sub.90 With                                                                           MIC.sub.90 With                                                                           MIC.sub.90 With                                          0 μg/mL 0.5-8 μg/mL                                                                            16-64 μg/mL                                           rBPI.sub.21                                                                               rBPI.sub.21                                                                               rBPI.sub.21                                  Antibiotic Tested                                                                          (n = 38).sup.a                                                                            (n = 31).sup.a                                                                            (n = 25).sup.a                               ______________________________________                                         Amikacin    16         16         16                                           Amox/K Clav 16         16         8                                            Amp/Sulbactam                                                                              8          8          8                                            Ampicillin  --         --         --                                           Cefazolin   --         --         --                                           Cefataxime  32         8          4                                            Ceftriaxone --         32         8                                            Cefuroxime  --         --         16                                           Cephalothin 8          4          4                                            Chloramphenicol                                                                            8          8          4                                            Ciprofloxacin                                                                              1          1          1                                            Clindamycin --         --         --                                           Erythromycin                                                                               --         --         --                                           Gentamicin  --         --         --                                           Imipenem    --         --         8                                            Nitrofurantoin                                                                             32         32         32                                           Norfloxacin 4          4          4                                            Oxacillin   --         --         --                                           Penicillin  --         --         --                                           Rifampin    1          1          1                                            Sulfamethoxazole                                                                           --         --         256                                          Tetracycline                                                                               128        128        128                                          Ticarcillin/K Clav                                                                         --         --         --                                           Trimeth/Sulfa                                                                              2          2          2                                            Vancomycin  2          2          2                                            ______________________________________                                          .sup.a Number of runs; 12 strains tested                                 

                  TABLE 11A                                                        ______________________________________                                         Susceptibility ranges for S. aureus                                                       MIC (μg/mL)                                                      Antibiotic   Resistant Intermediate                                                                              Susceptible                                  ______________________________________                                         Amikacin     >32       32         ≦16                                   Amoxicillin/K Clav.                                                                         ≧8/4          ≦4/2                                  Ampicillin/Sulbactam                                                                        >16/8     16/8       ≦8/4                                  Ampicillin   ≧0.5          ≦0.25                                 Cefazolin    >16       16         ≦8                                    Cefotaxime   >32       16-32      ≦8                                    Ceftriaxone  >32       16-32      ≦8                                    Cefuroxime   >16       16         ≦8                                    Cephalothin  >16       16         ≦8                                    Chloramphenicol                                                                             >16       16         ≦8                                    Ciprofloxacin                                                                               >2         2         ≦1                                    Clindamycin  >2        1-2        ≦0.5                                  Erythromycin >4        1-4        ≦0.5                                  Gentamicin   >6         6         ≦4                                    Imipenem     >8         8         ≦4                                    Nitrofurantoin                                                                              >64       64         ≦32                                   Norfloxacin  >8         8         ≦4                                    Oxacillin    ≧4            ≦2                                    Penicillin   ≧0.25         ≦0.12                                 Rifampin     >2         2         ≦1                                    Sulfamethoxazole                                                                            >256                 ≦256                                  Tetracycline ≧128                                                                               8         ≦4                                    Ticarcillin/K Clav.                                                                         ≧8            ≦4                                    Trimethoprim/                                                                               >2/38                ≦2/38                                 Surfamethoxazole                                                               Vancomycin   >16        8-16      ≦4                                    ______________________________________                                    

                                      TABLE 11X                                    __________________________________________________________________________     EFFECTS OF BPI PROTEIN PRODUCTS ± ANTIOBIOTICS                                               Minimum Inhibitory Concentration of Antibiotic                                 (μg/mL) With:                                              Organism                         4               16                            Name             0   4   4   4   μg/mL                                                                           16  16  16  μg/mL                      (Microscan ®                                                                      Antibiotic                                                                               μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           rBPI.sub.42                                                                        μg/mL                                                                           μg/mL                                                                           μg/mL                                                                           rBPI.sub.42                   ID No.)                                                                               Tested    BPI rBPI.sub.21                                                                        rBPI.sub.23                                                                        rBPI.sub.50                                                                        dimer                                                                              rBPI.sub.21                                                                        rBPI.sub.23                                                                        rBPI.sub.50                                                                        dimer                         __________________________________________________________________________     S. aureus                                                                             Cephalothin                                                                              8   4   4   4   8   4   4   4   4                             052-106                                                                               Cefuroxime**                                                                             >16 16  16  16  >16 8   8   8   8                                    Ceftriaxone*                                                                             16  8   8   8   16  8   8   8   8                                    Chloramphenicol                                                                          8   8   8   8   8   <4  <4  16  <4                                   Trimethoprim/                                                                            >2  <2  <2  <2  <2  <2  <2  <2  <2                                   Sulfamethoxazole**                                                             Ciprofloxacin                                                                            <1  <1  <1  <1  <1  <1  <1  >2  <1                                   Sulfamethoxazole**                                                                       >256                                                                               >256                                                                               >256                                                                               >256                                                                               >256                                                                               <256                                                                               >256                                                                               >256                                                                               <256                          __________________________________________________________________________

EXAMPLE 17 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON STRAINS OF THE GRAM-POSITIVE ORGANISM STAPHYLOCOCCUS EPIDERMIDIS

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of a variety of Staphylococcus epidermidis species was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI₂₁ on these species was also evaluated in the same assay. Assays were conducted on the following clinical isolates of S. epidermidis (from Baxter Microscan® library, Sacramento, Calif.): 055051, 055155, 19776, 20778, 20959, 055125, 055129, 055126, 32086 and 32085. S. epidermidis is a coagulase-negative staphylococcus that is a major agent of nosocomial (hospital-acquired) sepsis in oncology and neonatal sections, and accounts for about 40% of all prosthetic joint infections.

These strains of S. epidemidis were tested to determine the MIC₉₀ for each antibiotic in the panel at varying concentrations of rBPI₂₁. Results are reported in Table 12 below, and applicable antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) appear in Table 12A.

The data show that the BPI protein product was able to reduce the S. epidermidis MIC₉₀ values for thirteen of twenty-five antibiotics evaluated: amikacin, amoxicillin/K clavulanate (augmentin), ampicillin, cefazolin, cefotaxime, ceftriaxone, cefuroxime, chloramphenicol, penicillin, sulfamethoxazole, tetracycline, ticarcillin/K clavulanate and trimethoprim/sulfamethoxazole. None of the S. epidermidis strains tested were susceptible to BPI protein product alone, without antibiotic.

                  TABLE 12                                                         ______________________________________                                         Effect of rBPI.sub.21 on MIC.sub.90 of Antibiotics                             for Staphylococcus epidermidis                                                             MIC.sub.90 With                                                                           MIC.sub.90 With                                                                           MIC.sub.90 With                                          0 μg/mL 8 μg/mL 32 μg/mL                                              rBPI.sub.21                                                                               rBPI.sub.21                                                                               rBPI.sub.21                                  Antibiotic Tested                                                                          (n = 35).sup.a                                                                            (n = 10).sup.a                                                                            (n = 9).sup.a                                ______________________________________                                         Amikacin    32         NT         16                                           Amoxicillin/K Clav                                                                         8          8          4                                            Ampicillin/ 8          NT         8                                            Sulbactam                                                                      Ampicillin  --         --         4                                            Cefazolin   4          4          2                                            Cefotaxime  --         --         8                                            Ceftriaxone --         NT         4                                            Cefuroxime  --         NT         2                                            Cephalothin 8          8          8                                            Chloramhenicol                                                                             --         NT         4                                            Ciprofloxacin                                                                              1          1          1                                            Clindamycin --         --         --                                           Erythromycin                                                                               --         --         --                                           Gentamicin  --         --         --                                           Imipenem    --         --         --                                           Nitrofurantoin                                                                             32         32         32                                           Norfloxacin 4          4          4                                            Oxacillin   --         --         --                                           Penicillin  --         --         8                                            Rifampin    1          1          1                                            Sulfamethoxazole                                                                           --         NT         256                                          Tetracycline                                                                               128        128        8                                            Ticarcillin/K Clav                                                                         --         NT         1                                            Trimeth/Sulfa                                                                              --         2          2                                            Vancomycin  2          2          2                                            ______________________________________                                          .sup.a Number of runs.                                                   

                  TABLE 12A                                                        ______________________________________                                         Susceptibility ranges for S. epidermidis                                                  MIC (μg/mL)                                                      Antibiotic   Resistant Intermediate                                                                              Susceptible                                  ______________________________________                                         Amikacin     >32       32         ≦16                                   Amoxicillin/K Clav.                                                                         ≧8/4          ≦4/2                                  Ampicillin/Sulbactam                                                                        >16/8     16/8       ≦8/4                                  Ampicillin   ≧0.5          ≦0.25                                 Cefazolin    >16       16         ≦8                                    Cefotaxime   >32       16-32      ≦8                                    Ceftriaxone  >32       16-32      ≦8                                    Cefuroxime   >16       16         ≦8                                    Cephalothin  >16       16         ≦8                                    Chloramphenicol                                                                             >16       16         ≦8                                    Ciprofloxacin                                                                               >2         2         ≦1                                    Clindamycin  >2        1-2        ≦0.5                                  Erythromycin >4        1-4        ≦0.5                                  Gentamicin   >6         6         ≦4                                    Imipenem     >8         8         ≦4                                    Nitrofurantoin                                                                              >64       64         ≦32                                   Norfloxacin  >8         8         ≦4                                    Oxacillin    ≧4            ≦2                                    Penicillin   ≧0.25         ≦0.12                                 Rifampin     >2         2         ≦1                                    Sulfamethoxazole                                                                            >256                 ≦256                                  Tetracycline ≧128                                                                               8         ≦4                                    Ticarcillin/K Clav.                                                                         ≧8            ≦4                                    Trimethoprim/                                                                               >2/38                ≦2/38                                 Surfamethoxazole                                                               Vancomycin   >16        8-16      ≦4                                    ______________________________________                                    

EXAMPLE 18 IN VITRO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON SPECIES OF THE GRAM-POSITIVE ORGANISM STAPHYLOCOCCUS

The effect of a BPI protein product, rBPI₂₁, on the antibiotic susceptibility of a variety of other coagulase-negative Staphylococcus species was evaluated using the Microscan® antibiotic susceptibility screening assay of Example 9. The direct growth inhibitory effect of rBPI₂₁ on these species was also evaluated in the same assay. Assays were conducted on clinical isolates of Staphylococcus species (from Baxter Microscan® library, Sacramento, Calif.). In the last decade there has been a marked increase in clinical infections caused by the coagulase-negative staphylococci. These organisms are also significant opportunistic pathogens.

A summary of the results of the antibiotic screening panels, reported as MICs (μg/ml) of the antibiotic tested, is shown in Table 13 below. The antibiotic susceptibility standards (interpretation of an MIC as clinically resistant, intermediate or susceptible according to NCCLS standards) applicable to the organism tested appear in Table 13A.

These results show that BPI protein product reversed resistance to penicillin for one S. hominis strain, and reversed resistance to trimethoprim/sulfamethoxazole for one S. haemolyticus strain and the S. intermedius strain. BPI protein product increased susceptibility of S. hominis strains to ampicillin and penicillin, the S. sciuri strain to clindamycin and penicillin, the S. saprophyticus strain to erythromycin, S. haemolyticus strains to erythromycin, and the S. hyicus strain to clindamycin and erythromycin, the S. intermedius strain to erythromycin, and the S. simulans strain to erythromycin. None of these tested strains were susceptible to BPI₂₁ alone at the concentrations tested.

                  TABLE 13                                                         ______________________________________                                         Effects of rBPI.sub.21 on Staphylococcus Species                                                Minimum Inhibitory                                                             Concentration (μg/ml)                                                             With 0   With 4                                                                               With 16                                  Microscan   Antibiotic μg/ml μg/ml                                                                             μg/ml                                 Library ID No..sup.a                                                                       Tested.sup.b                                                                              rBPI.sub.21                                                                             rBPI.sub.21                                                                          rBPI.sub.21                              ______________________________________                                         ( S. hominis)                                                                              Ampicillin 0.25     <0.12 <0.12                                    057-003     Penicillin**                                                                              0.5      0.06  0.06                                     (S. hominis)                                                                               Ampicillin 0.25     0.25  <0.12                                    057-001     Penicillin 0.25     0.12  0.06                                     (S. hominis)                                                                               Ampicillin 0.25     0.5   0.25                                     057-024     Penicillin 0.5      0.5   0.5                                      (S. scirui) Pencillin  0.06     0.06  <0.03                                    060-016     Clindamycin*                                                                              1        1     0.5                                      (S. saprophyticus)                                                                         Erythromycin                                                                              0.5      0.5   <0.25                                    059-003                                                                        (S. haemolyticus)                                                                          Trim/Sulfa**                                                                              >2       <2    <2                                       19770       Erythromycin                                                                              >4       4     4                                        (S. haemolyticus)                                                                          Ampicillin 0.5      1     0.5                                      056-042     Penicillin 0.25     0.5   0.25                                     (S. hyicus) Erythromycin                                                                              0.5      <0.25 <0.25                                    10377       Clindamycin                                                                               0.5      <0.25 <0.25                                    (S. intermedius)                                                                           Trim/Sulfa**                                                                              >2       <2    <2                                       10254       Erythromycin                                                                              0.5      <0.25 <0.25                                    (S. simulans)                                                                              Erythromycin                                                                              0.5      0.5   <0.25                                    061-001                                                                        ______________________________________                                          .sup.a Two strains of S. lugdunensis (Microscan library ID Nos. 19782 and      11130) were also tested but were susceptible to all antibiotics tested.        .sup.b Strains were susceptible to all other antibiotics that were tested      but are not shown here.                                                  

                  TABLE 13A                                                        ______________________________________                                         Susceptibility ranges for Staphylococcus species                                          MIC (μg/mL)                                                      Antibiotic   Resistant Intermediate                                                                              Susceptible                                  ______________________________________                                         Ampicillin   ≧0.5          ≦0.25                                 Clindamycin  >2        1-2        ≦0.5                                  Erythromycin >4        1-4        ≦0.5                                  Penicillin   ≧0.25         ≦0.12                                 Trimethoprim/                                                                               >2/38                ≦2/38                                 Sulfamethoxazole                                                               ______________________________________                                    

EXAMPLE 19 EARLY IN VITRO BACTERICIDAL EFFECTS OF BPI PROTEIN PRODUCT ALONE OR IN COMBINATION WITH ANTIBIOTICS ON S. AUREUS, S. PNEUMONIAE, AND E. FAECIUM

The effect of a BPI protein product, rBPI₂₁, on the killing curves of selected antibiotics was determined for selected organisms. Microscan® panel plates were prepared for a methicillin-resistant S. aureus (Microscan library ID no. 052-106), S. pneumoniae (Microscan library ID no. 31573), and E. faecium (Microscan library ID no. 15773), according to Example 9. Cell suspensions were added to 25 ml Pluronic Inoculum Water containing 0 or 16 μg/ml rPBI₂₁. After inoculation, the panel plates were incubated at 35° C. for 24 hours. At 0, 4, 7 and 24 hours after inoculation, 5 μl samples were removed from each growth control well (containing culture media without antibiotic) and from each well containing: 8 μg/ml penicillin, 2 μg/ml ciprofloxacin, 256 μg/ml sulfamethoxazole, 32 μg/ml cefotaxime, 16 μg/ml chloramphenicol, or 16 μg/ml vancomycin. These 5 μl samples were diluted in sterile water and inoculated onto Trypticase Soy agar plates (Remel, Lenexa, Kans.) or blood agar plates (Remel, Lenexa, Kans.) for S. pneumoniae. After 48 hours of incubation at 35° C., the plates were counted and the number of colony forming units of bacteria remaining in the well was calculated.

The results are shown below in FIGS. 26 through 32. In all of the figures, the growth in the presence of antibiotic alone (without rPBI₂₁) is indicated for: S. aureus (a filled square), S. pneumoniae (a fried diamond) or E. faecium (a filled triangle). Also, in all figures, the growth in the presence of antibiotic with rPBI₂₁ is indicated for: S. aureus (an open square), S. pneumoniae (an open diamond) or E. faecium (an open triangle).

FIG. 26 shows the growth curve of organisms with rBPI₂₁ (and without antibiotic) and without rPBI₂₁ (and without antibiotic). In FIG. 26, the growth curves for S. aureus with rBPI₂₁ (open squares) and E. faecium without rBPI₂₁ (filled triangles) overlap at 7 and 24 hours. The results show that BPI protein product has a dramatic bactericidal effect on S. pneumoniae that continues through 24 hours, and a moderate early inhibitory effect on growth of E. faecium that is not sustained after 10 hours.

In FIG. 27, the growth curves for S. pneumoniae with rPBI₂₁ (open diamonds) and S. pneumoniae without rBPI₂₁ (filled diamonds) overlap at 7 and 24 hours. FIG. 27 shows that the BPI protein product enhanced the early bactericidal effect of penicillin on all three organisms at 0-10 hours.

In FIG. 28, the growth curves for S. pneumoniae with rPBI₂₁ (open diamonds) and S. pneumoniae without rPBI₂₁ (filled diamonds) overlap completely. FIG. 28 shows that BPI protein product enhanced the early bactericidal activity of cefotaxime for S. aureus and E. faecium at 0-10 hours.

FIG. 29 shows that BPI protein product enhanced the early bactericidal activity of chloramphenicol for all three organisms at 0-10 hours.

FIG. 30 shows that BPI protein product enhanced the early bactericidal activity of sulfamethoxazole for all three organisms at 0-10 hours.

In FIG. 31, the growth curves for S. aureus with rBPI₂₁ (open squares), S. aureus without rPBI₂₁ (filled squares) and S. pneumoniae without rPBI₂₁ (fried diamonds) overlap almost completely. FIG. 31 shows that BPI protein product enhanced the early bactericidal activity of ciprofloxacin for S. pneumoniae and E. faecium at 0-10 hours.

In FIG. 32, the growth curves for S. pneumoniae with rPBI₂₁ (open diamonds) and S. pneumoniae without rPBI₂₁ (filled diamonds) overlap completely. FIG. 32 shows that BPI protein product enhanced the early bactericidal effect of vancomycin for S. aureus and E. faecium at 0-10 hours.

The early time course of the bactericidal activity of BPI protein product was studied for three clinical isolates (methicillin-resistant S. aureus, S. pneumoniae, and E. faecium). Approximately 4 to 10 colonies of each bacterial species, from 18 to 24 hour growth on either trypticase soy agar plates (for S. aureus and E. faecium) or 5% sheep blood agar plates (for S. pneumoniae) (Remel, Lenexa, Kans.), were emulsified in sterile water to a density equivalent to an 0.5 McFarland standard; 100 μL of this bacterial inoculum was transferred to glass tubes containing 25 mL Microscan® Pluronic Inoculum Water, such that the final concentration of organisms was ˜4 to 7×10⁸ cells/mL, and rPBI₂₁ was added to a final concentration of 16 μg/mL. The tubes were mixed by inversion, and a control and BPI sample were immediately removed and diluted 1:100 in sterile water for colony counts. Similar samples were taken at 7.5, 15, 30, 60, 90 and 120 minutes. The plates were incubated at 35° C. to 37° C. for 15 to 24 hours and the CFUs/mL were measured by direct counts.

Some bactericidal activity was observed for all isolates afer 15 minutes of incubation at room temperature. However, the strain considered susceptible to the direct bactericidal effects of BPI protein product (S. pneumoniae) was immediately reduced to 0 CFU at 7.5 minutes, while the killing curves for "resistant" strains (S. aureus and E. faecium) were prolonged. There was at least a three-log reduction in the number of organisms after the BPI treatment; however, 0 CFU was never reached. CFU data is summarized in Table 14 below.

                                      TABLE 14                                     __________________________________________________________________________     Calculated CFUs/mL                                                                          0 mins                                                                             7.5 mins                                                                            15 mins                                                                            30 mins                                                                            60 mins                                                                            90 mins                                                                            120 mins                                 __________________________________________________________________________     S. pneumoniae control                                                                       179000                                                                             173000                                                                              153000                                                                             187000                                                                             169000                                                                             168000                                                                             143000                                   S. pneumoniae with rBPI.sub.21                                                              6000                                                                               2    0   0   0   686 0                                        S. aurem control                                                                            488000                                                                             615000                                                                              440000                                                                             640000                                                                             480000                                                                             720000                                                                             410000                                   S. aureus with rBPI.sub.21                                                                  650000                                                                             5000 300 260 510 530 510                                      E. faecium control                                                                          276000                                                                             193000                                                                              265000                                                                             277000                                                                             265000                                                                             301000                                                                             212000                                   E. faecium with rBPI.sub.21                                                                 131000                                                                             129000                                                                              41000                                                                              3340                                                                               990 700 570                                      __________________________________________________________________________

To determine if the reason S. aureus organisms had survived the initial BPI treatment was due to resistance to BPI protein product, colonies recovered after 90 minutes of incubation with 16 μg/mL rBPI₂₁ were grown for 24 hours, prepared as previously described and incubated with an additional 16 μg/mL rBPI₂₁. Control S. aureus that had not been previously exposed to BPI protein product were also incubated with 16 μg/mL rBPI₂₁. After 30 minutes of incubation, the survivors and controls were plated and counted. As seen in Table 15 below, the survivors from an initial treatment with rBPI₂₁ were not resistant to BPI protein product.

                  TABLE 15                                                         ______________________________________                                                     Control     16 μg/mL rBPI.sub.21                                ______________________________________                                         S. aureus     5 × 10.sup.5 CFU/mL                                                                    3 × 10.sup.2 CFU/mL                          S. aureus recovered after                                                                    4 × 10.sup.5 CFU/mL                                                                    2 × 10.sup.2 CFU/mL                          90 min. incubation with                                                        16 μg/mL rBPI.sub.21                                                        ______________________________________                                    

In another experiment, S. aureus organisms were incubated for 30 minutes in 16 μg/mL rBPI₂₁, and an aliquot was removed, plated and counted. Half of the BPI-treated cell suspension was incubated with an additional 16 μg/mL rBPI₂₁. Incubation continued for both cell suspensions for an additional 30 minutes. The additional rBPI₂₁ treatment decreased the relative number of survivors over the untreated control (84% reduction/30 min. vs 34% control reduction/30 min.).

It should be noted that incubation in Mueller-Hinton broth inhibited the complete killing of S. pneumoniae between 0 and 7.5 minutes. In additional experiments conducted to explore this phenomenon, it was determined that the addition of calcium chloride to the incubation medium appeared to reduce the effectiveness of rBPI₂₁ as measured by increased CFUs. A preliminary experiment indicating that NaCl may also reduce the effectiveness of rPBI₂₁ (i.e., increased CFUs) suggests that osmolality may be a factor.

EXAMPLE 20 IN VITRO EFFECT OF BPI PROTEIN PRODUCTS ALONE OR IN COMBINATION WITH ANTIBIOTICS ON GRAM-POSITIVE ORGANISMS

BPI protein products are evaluated, using a multiwell antibiotic susceptibility screening assay, for their effects alone or in combination with penicillin, ampicillin or ciprofloxacin on a culture of Streptococcus pneumoniae (especially penicillin-resistant organisms). BPI protein products are also evaluated alone or in combination with the antibiotics vancomycin, rifampin, ciprofloxacin, cefazolin, vancomycin/gentamicin and ciprofloxacin/pip eracillin for their effects on the organism Staphylococcus aureus (especially methicillin resistant organisms). BPI protein products are evaluated alone or in combination with penicillin, ampicillin, vancomycin, ciprofloxacin, penicillin/gentamicin, or azithromycin for their effects on Enterococcus (multiply resistant strains). The effect of BPI protein products alone or in combination with vancomycin or clindamycin on Corynebacteria are evaluated.

EXAMPLE 21 IN VITRO ENHANCEMENT OF THE BACTERICIDAL ACTIVITY OF BPI PROTEIN PRODUCTS BY SELECTED POLOXAMERS

The anti-bacterial activity of therapeutic compositions comprising a BPI protein product and a variety of different poloxamer surfactants was evaluated as described in co-owned, co-pending U.S. patent application Ser. No. No. 08/372, 104, filed concurrently herewith the disclosure of which is herein incorporated by reference. Briefly, therapeutic compositions comprising a BPI protein product and a poloxamer surfactant at concentrations ranging from 0.005 to 0.1% (weight/volume) were prepared and incubated at 37° C. with gram-positive organisms in water, broth, or varying concentrations of serum. After incubation, the colony forming units (CFU) of bacteria remaining were determined to ascertain enhancement of anti-bacterial activity. Studies were also performed using poloxamer surfactants that had been heat-treated using the following procedure: (1) making a solution of the poloxamer in deionized water, (2) heating the solution to a boil, (3) removing it from heat, (4) allowing it to cool to room temperature, and (5) stirring until the poloxamer is completely solubilized. Alternatively, in the heating step (2), the solution may be boiled for up to 30 minutes or more.

It was observed that poloxamer 333 (heat-treated or not) and poloxamer 403 (heat-treated or not) and poloxamer 335 and heat-treated poloxamer 334 provided enhancement of the anti-bacterial activity of BPI protein products against bacteria.

EXAMPLE 22 IN VIVO EFFECTS OF BPI PROTEIN PRODUCTS ALONE OR WITH ANTIBIOTICS

Preliminary experiments, in which BPI protein products alone or with penicillin were administered to mice challenged intravenously with 5×10⁸ CFU of the S. aureus bacterial form of Example 3 above, did not show an effect on mortality. This outcome was not unexpected in view of the lack of effect of BPI protein products on that bacterial form in the in vitro assays of Examples 2, 3 and 16. No effect on mortality was observed in preliminary experiments in which mice were challenged with 1×10⁵ CFU of a S. pneumoniae bacterial form which appeared in a preliminary experiment to be susceptible to rPBI₂₁ alone in the Microscan® system. Additional in vivo experiments will be performed in a variety of other animal models, including using a variety of different BPI protein products alone and in conjunction with a variety of different antibiotics.

A. EVALUATION IN THE MOUSE PNEUMONIA MODEL

The effect on gram-positive infections of BPI protein products administered alone or in combination with antibiotics is evaluated in a mouse pneumonia model. Pneumonia is induced in mice by intranasal instillation of 3 drops of an undiluted overnight culture of S. pneumoniae in trypticase soy broth containing 5% goat serum. The challenge dose is administered under light Metofane anesthesia with a 1-ml tuberculin syringe and a 22-gauge needle. Infected mice are treated 24 hours after infection with a single intravenous dose of BPI protein product alone, antibiotic alone, or the combination of both agents. The mice are sacrificed 48 hours after infection. The lungs are removed aseptically and cultured for the presence of organism by touching a cut surface of the lung to a blood agar plate. Under these conditions, at 48 hours after infection, untreated controls exhibit consolidation of the lungs and heavily positive cultures. Further, in this model, most of the untreated controls die within 96 hours after infection.

B. EVALUATION IN THE RABBIT ENDOCARDITIS MODEL

The effect on gram-positive infections of BPI protein products administered alone or in combination with antibiotics is evaluated in a rabbit endocarditis model. Young New Zealand white rabbits weighing 1 to 2 kg are anesthetized by the intravenous injection of 40 to 60 mg of pentobarbitone. An incision is made parallel to the trachea, approximately 4 cm long and 1 cm to the right of the midline. To produce right-sided endocarditis, the jugular vein is exposed and opened between ligatures. The lower ligature is loosened, and a polyethylene catheter of 0.8 mm external diameter and 0.4 mm internal diameter containing sterile saline is passed toward the heart until resistance and pulsation indicates that it has entered the right atrium or ventricle. The catheter is then secured in place by tightening both ligatures, any excess is cut off, and the distal end is sealed with a heated spatula before the skin is closed over the catheter with silk sutures. For left-sided endocarditis, the right carotid artery can be exposed through a similar incision, opened between ligatures, and a catheter passed toward the heart until pulsation resistance and reflux of arterial blood indicates that it has reached the aortic valve or passed beyond into the left ventricle. It is then secured as described above.

The presence of a catheter in the heart results in the development of sterile vegetations consisting of small, rough whitish nodules 1 to 2 mm in size, usually at points of contact between the catheter and the endocardium. The sterile vegetations are infected by a single injection of bacteria into an ear vein. If Streptococcus viridans is used for infection, the infecting inoculum can be prepared by diluting an overnight glucose broth culture and injecting approximately 10⁸ organisms in a volume of 1 ml. Other gram-positive organisms can be used and may include Micrococcus albus, S. aureus, S. epidermidis, and other strains. An infecting inoculum can be prepared for these organisms by preparing a 1:10 dilution of an overnight glucose broth culture and injecting 1 mL intravenously. BPI protein product alone, antibiotic alone, or the combination treatment is given intravenously in daily doses. After days, the rabbits are sacrificed and any vegetations found are removed aseptically. The vegetations are weighed and homogenized in glucose broth. Bacterial counts are determined by preparing serial dilutions in glucose broth and incorporating the dilutions into blood agar pour plates. The CFU of organism per g of wet weight is then calculated.

C. EVALUATION IN THE MOUSE INTRAPERITONEAL ABSCESS MODEL

The effect on gram-positive infections of BPI protein products administered alone or in combination with antibiotics is evaluated in a mouse intrapefitoneal abscess model. S. aureus is grown for 24 hours in trypticase soy broth with constant shaking. Cultures are continuously gassed with 100% oxygen to minimize α-hemolysin production. The organisms are harvested by centrifugation, washed in saline contaning 1% trypticase soy broth (v/v), and resuspended in the same diluent to approximately 1×10¹⁰ to 5×10¹⁰ bacteria per ml. Bacterial counts can be confirmed by plate counts.

Groups of female white Swiss mice weighing 20 to 30 g are inoculated intraperitoneally with 0.5 ml of a suspension contaning 1 to 2×10⁹ bacteria. Beginning at 3 hours and at various intervals thereafter, subgroups of infected animals selected at random are sacrificed, and the clumped organisms or abscesses are aseptically removed from the peritoneal cavities. All clumps or abscesses from a single animal are ground and homogenized in 5 ml of saline containing 1% trypticase soy broth. The suspension is serially diluted and the bacterial population determined by plate counts.

D. EVALUATION IN THE MOUSE THIGH ABSCESS MODEL

The effect on gram-positive infections of BPI protein products administered alone or in combination with antibiotics is evaluated in a mouse thigh abscess model.

The thigh lesion model provides a nonlethal experimental infection to evaluate the effectiveness of an antimicrobial and allows the measurement of drug-pathogen interaction and drug pharmacokinetics in the infected host. If the animals are made neutropenic, then the thigh model becomes an excellent system for measuring the drug-microorganism interaction with most of the host defense system eliminated.

Swiss outbred mice, preferably ICR mice, weighing 23 to 27 g are used. The mice are made neutropenic by administering cyclophosphamide (150 and 100 mg/kg i.p.) on days 0 and 3, respectively. By day 4 severe neutropenia is induced (<100 neutrophils/mm³) which lasts for two to three days. The infecting organism is grown in broth to log phase and adjusted to an OD of 0.30 at 580 nm (˜10⁶ to 10⁷ CFU/ml). The mice are infected on day 4 by injecting 0.1 ml of this inoculum into each thigh while the animals are under fight ether anesthesia. The infection is allowed to proceed for 2 hours. The antimicrobial is then administered in graded doses subcutaneously to groups of infected mice. Infected, untreated animals serve as controls. Two to four mice from each treatment group are sacrificed every hour for the first 4 hours and every 2 to 4 hours until 16 hours after treatment. Infected, untreated animals are killed at similar times.

The thigh muscles are removed at each sampling period and homogenized immediately in 9 ml of 0.85% NaCl with a Polytron tissue homogenizer. Viable counts are determined after plating duplicate 10μ samples of serial 10-fold dilutions of the homogenates on appropriate media. The log CFU/thigh is determined at each time point for groups of treated and untreated animals.

E. EVALUATION IN A RABBIT INTRAOCULAR INFECTION MODEL

The effect on gram-positive infections of BPI protein products administered alone or in combination with antibiotics is evaluated in the following model. The rabbits' eyes, anesthetized locally with 0.5% tetracaine hydrochloride, are sterilized with Metaphen (1:4000) and flushed with normal saline. Using a 26-gauge needle, approximately 0.2 ml containing 300,000 or 5,000 CFU or 0.02 ml containing 700 CFU of S. aureus is inoculated into the center of the rabbit cornea, the anterior chamber, or the vitreous of the eye. Cultures are taken at 24, 48, and 72 hours from the corneas and anterior chambers of the rabbits' eyes that received corneal inoculations. All corneas are flushed with Metaphen (1:4000) and saline before culturing to eliminate surface contaminants.

Cultures are taken at the same intervals from the anterior chamber and vitreous of rabbit eyes that were inoculated in the anterior chamber. Vitreous humor is removed with a 19-gauge needle. The irises are also cultured.

The eyes that are inoculated intravitreally are also cultured at 24, 48, and 72 hours. Samples of the vitreous humor and anterior chamber as well as the retina are used to determine the progress of the infection.

When 300,000 CFU in 0.2 ml of broth is inoculated into the corneas, anterior chamber, and vitreous of the rabbit's eyes, a virulent panophthalmitis is generally produced within 24 to 48 hours, and destruction of the eye occurs within 72 hours regardless of the site of inoculation. When 5000 CFU in 0.2 ml is inoculated into the corneas, anterior chambers, and vitreous, a panophthalmitis generally results in 72 hours, with infections being most severe following intravitreal inoculations and less intense when the anterior chamber is the site of inoculation. When 700 CFU in 0.02 ml is used as the inoculum, the infections are generally eliminated in the corneas and anterior chambers within 24 hours but not in the vitreous.

Other models of ocular infection and disease known in the art [see, e.g., Sugar et al., Arch. Opthalmol., 104: 1230-1232 (1986) and Moon et al., Investigative Ophthalmol. Visual Science, 29: 1277-1284 (1988)] may be used for the assessment of BPI protein product effects on ocular conditions associated with bacterial infection, when the BPI protein product is administered alone or in conjunction with antibiotics.

Numerous modifications and variations in the practice of the invention are expected to occur to those skilled in the art upon consideration of the foregoing description of the presently preferred embodiments thereof. Consequently, the only limitations which should be placed upon the scope of the present invention are those which appear in the appended claims.

    __________________________________________________________________________     SEQUENCE LISTING                                                               (1) GENERAL INFORMATION:                                                       (iii) NUMBER OF SEQUENCES: 237                                                 (2) INFORMATION FOR SEQ ID NO:1:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "Domain I"                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:1:                                        AlaSerGlnGlnGlyThrAlaAlaLeuGlnLysGluLeuLysArgIle                               151015                                                                         LysIleProAspTyrSerAspSerPheLysIleLysHis                                        2025                                                                           (2) INFORMATION FOR SEQ ID NO:2:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 30 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.14"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:2:                                        GlyThrAlaAlaLeuGlnLysGluLeuLysArgIleLysIleProAsp                               151015                                                                         TyrSerAspSerPheLysIleLysHisLeuGlyLysGlyHis                                     202530                                                                         (2) INFORMATION FOR SEQ ID NO:3:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 22 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.4"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:3:                                        LeuGlnLysGluLeuLysArgIleLysIleProAspTyrSerAspSer                               151015                                                                         PheLysIleLysHisLeu                                                             20                                                                             (2) INFORMATION FOR SEQ ID NO:4:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.1"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:4:                                        GlnGlnGlyThrAlaAlaLeuGlnLysGluLeuLysArgIleLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:5:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.54"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:5:                                        GlyThrAlaAlaLeuGlnLysGluLeuLysArgIleLysIlePro                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:6:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 35 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "Domain II"                                             (xi) SEQUENCE DESCRIPTION: SEQ ID NO:6:                                        SerSerGlnIleSerMetValProAsnValGlyLeuLysPheSerIle                               151015                                                                         SerAsnAlaAsnIleLysIleSerGlyLysTrpLysAlaGlnLysArg                               202530                                                                         PheLeuLys                                                                      35                                                                             (2) INFORMATION FOR SEQ ID NO:7:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.2"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:7:                                        IleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:8:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 10 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.8"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:8:                                        LysTrpLysAlaGlnLysArgPheLeuLys                                                 1510                                                                           (2) INFORMATION FOR SEQ ID NO:9:                                               (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 16 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.58"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:9:                                        CysIleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                               151015                                                                         (2) INFORMATION FOR SEQ ID NO:10:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 17 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.65 oxidized"                                       (xi) SEQUENCE DESCRIPTION: SEQ ID NO:10:                                       CysIleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                               151015                                                                         Cys                                                                            (2) INFORMATION FOR SEQ ID NO:11:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 27 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.3"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:11:                                       AsnValGlyLeuLysPheSerIleSerAsnAlaAsnIleLysIleSer                               151015                                                                         GlyLysTrpLysAlaGlnLysArgPheLeuLys                                              2025                                                                           (2) INFORMATION FOR SEQ ID NO:12:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "Domain III"                                            (xi) SEQUENCE DESCRIPTION: SEQ ID NO:12:                                       ValHisValHisIleSerLysSerLysValGlyTrpLeuIleGlnLeu                               151015                                                                         PheHisLysLysIleGluSerAlaLeuArgAsnLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:13:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 13 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.11"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:13:                                       LysSerLysValTrpLeuIleGlnLeuPheHisLysLys                                        1510                                                                           (2) INFORMATION FOR SEQ ID NO:14:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.12"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:14:                                       SerValHisValHisIleSerLysSerLysValGlyTrpLeuIleGln                               151015                                                                         LeuPheHisLysLysIleGluSerAlaLeuArgAsnLys                                        2025                                                                           (2) INFORMATION FOR SEQ ID NO:15:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.13"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:15:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:16:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.15"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:16:                                       AlaLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:17:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.16"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:17:                                       IleAlaIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:18:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.17"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:18:                                       IleLysAlaSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:19:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.18"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:19:                                       IleLysIleAlaGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:20:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.19"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:20:                                       IleLysIleSerAlaLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:21:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.20"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:21:                                       IleLysIleSerGlyAlaTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:22:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.21"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:22:                                       IleLysIleSerGlyLysAlaLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:23:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.22"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:23:                                       IleLysIleSerGlyLysTrpAlaAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:24:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.23"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:24:                                       IleLysIleSerGlyLysTrpLysAlaAlaLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:25:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.24"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:25:                                       IleLysIleSerGlyLysTrpLysAlaGlnAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:26:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.25"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:26:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysAlaPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:27:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.26"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:27:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgAlaLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:28:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.27"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:28:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgPheAlaLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:29:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.28"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:29:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuAla                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:30:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.59"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:30:                                       IleLysIleSerGlyAlaTrpAlaAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:31:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.45"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:31:                                       IleLysIleSerGlyLysTrpLysAlaAlaAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:32:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.60"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:32:                                       IleAlaIleSerGlyLysTrpLysAlaGlnLysArgPheLeuAla                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:33:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.31"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:33:                                       AlaSerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:34:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.32"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:34:                                       LysAlaLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:35:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.33"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:35:                                       LysSerAlaValGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:36:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.34"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:36:                                       LysSerLysAlaGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:37:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.35"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:37:                                       LysSerLysValAlaTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:38:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.36"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:38:                                       LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:39:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.37"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:39:                                       LysSerLysValGlyTrpAlaIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:40:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.38"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:40:                                       LysSerLysValGlyTrpLeuAlaGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:41:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.39"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:41:                                       LysSerLysValGlyTrpLeuIleAlaLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:42:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.40"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:42:                                       LysSerLysValGlyTrpLeuIleGlnAlaPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:43:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.41"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:43:                                       LysSerLysValGlyTrpLeuIleGlnLeuAlaHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:44:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.42"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:44:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:45:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.43"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:45:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisAlaLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:46:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.44"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:46:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:47:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.56"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:47:                                       IleLysIleSerGlyLysTrpLysAlaLysGlnArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:48:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.61"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:48:                                       IleLysIleSerGlyLysPheLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:49:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.66"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 7                                                                (D) OTHER INFORMATION: /label=D- Trp                                           /note="The amino acid at position 7 is                                         D- tryptophan"                                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:49:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:50:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.67"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6..8                                                             (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:50:                                       IleLysIleSerGlyLysAlaLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:51:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.9"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:51:                                       LysArgPheLeuLysLysTrpLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:52:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.30"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:52:                                       LysTrpLysAlaGlnLysArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:53:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.63"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:53:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLysLys                               151015                                                                         SerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                        2025                                                                           (2) INFORMATION FOR SEQ ID NO:54:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.7"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:54:                                       LysTrpLysAlaGlnLysArgPheLeuLysLysTrpLysAlaGlnLys                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:55:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 25 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.10.1"                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:55:                                       LysArgPheLeuLysLysTrpLysAlaGlnLysArgPheLeuLysLys                               151015                                                                         TrpLysAlaGlnLysArgPheLeuLys                                                    2025                                                                           (2) INFORMATION FOR SEQ ID NO:56:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.29"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:56:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIleGlnLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:57:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.46"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:57:                                       LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaGlnLys                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:58:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.47"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:58:                                       LysTrpLysAlaGlnLysArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:59:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.48"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:59:                                       LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:60:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 30 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.69"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:60:                                       LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLysLysTrpLysAlaAlaAlaArgPheLeuLys                                     202530                                                                         (2) INFORMATION FOR SEQ ID NO:61:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 21 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.55"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:61:                                       GlyTrpLeuIleGlnLeuPheHisLysLysIleGluSerAlaLeuArg                               151015                                                                         AsnLysMetAsnSer                                                                20                                                                             (2) INFORMATION FOR SEQ ID NO:62:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.73"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:62:                                       IleLysIleSerGlyLysTrpLysAlaGlnPheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:63:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.70"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 8..10                                                            (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-3- pyridyl-substituted"                                                   (xi) SEQUENCE DESCRIPTION: SEQ ID NO:63:                                       IleLysIleSerGlyLysAlaLysAlaGlnLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:64:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.71"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 13..15                                                           (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 13 is                                           beta-3- pyridyl-substituted"                                                   (xi) SEQUENCE DESCRIPTION: SEQ ID NO:64:                                       IleLysIleSerGlyLysTrpLysAlaGlnLysArgAlaLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:65:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 26 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.10.2"                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:65:                                       GlnLysArgPheLeuLysLysTrpLysAlaGlnLysArgPheLeuLys                               151015                                                                         LysTrpLysAlaGlnLysArgPheLeuLys                                                 2025                                                                           (2) INFORMATION FOR SEQ ID NO:66:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 17 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.72"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 1..3                                                             (D) OTHER INFORMATION: /label=D- alanine                                       /note="The position 1 and position 2 alanine                                   residues are both D-alanine"                                                   (xi) SEQUENCE DESCRIPTION: SEQ ID NO:66:                                       AlaAlaIleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeu                               151015                                                                         Lys                                                                            (2) INFORMATION FOR SEQ ID NO:67:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 22 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.5"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:67:                                       ValHisValHisIleSerLysSerLysValGlyTrpLeuIleGlnLeu                               151015                                                                         PheHisLysLysIleGlu                                                             20                                                                             (2) INFORMATION FOR SEQ ID NO:68:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 17 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.65 reduced"                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Disulfide-bond                                                   (B) LOCATION: 1..17                                                            (xi) SEQUENCE DESCRIPTION: SEQ ID NO:68:                                       CysIleLysIleSerGlyLysTrpLysAlaGlnLysArgPheLeuLys                               151015                                                                         Cys                                                                            (2) INFORMATION FOR SEQ ID NO:69:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 487 amino acids                                                    (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: protein                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "rBPI"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:69:                                       MetArgGluAsnMetAlaArgGlyProCysAsnAlaProArgTrpVal                               31-30-25-20                                                                    SerLeuMetValLeuValAlaIleGlyThrAlaValThrAlaAlaVal                               15-10-51                                                                       AsnProGlyValValValArgIleSerGlnLysGlyLeuAspTyrAla                               51015                                                                          SerGlnGlnGlyThrAlaAlaLeuGlnLysGluLeuLysArgIleLys                               202530                                                                         IleProAspTyrSerAspSerPheLysIleLysHisLeuGlyLysGly                               354045                                                                         HisTyrSerPheTyrSerMetAspIleArgGluPheGlnLeuProSer                               50556065                                                                       SerGlnIleSerMetValProAsnValGlyLeuLysPheSerIleSer                               707580                                                                         AsnAlaAsnIleLysIleSerGlyLysTrpLysAlaGlnLysArgPhe                               859095                                                                         LeuLysMetSerGlyAsnPheAspLeuSerIleGluGlyMetSerIle                               100105110                                                                      SerAlaAspLeuLysLeuGlySerAsnProThrSerGlyLysProThr                               115120125                                                                      IleThrCysSerSerCysSerSerHisIleAsnSerValHisValHis                               130135140145                                                                   IleSerLysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                               150155160                                                                      IleGluSerAlaLeuArgAsnLysMetAsnSerGlnValCysGluLys                               165170175                                                                      ValThrAsnSerValSerSerLysLeuGlnProTyrPheGlnThrLeu                               180185190                                                                      ProValMetThrLysIleAspSerValAlaGlyIleAsnTyrGlyLeu                               195200205                                                                      ValAlaProProAlaThrThrAlaGluThrLeuAspValGlnMetLys                               210215220225                                                                   GlyGluPheTyrSerGluAsnHisHisAsnProProProPheAlaPro                               230235240                                                                      ProValMetGluPheProAlaAlaHisAspArgMetValTyrLeuGly                               245250255                                                                      LeuSerAspTyrPhePheAsnThrAlaGlyLeuValTyrGlnGluAla                               260265270                                                                      GlyValLeuLysMetThrLeuArgAspAspMetIleProLysGluSer                               275280285                                                                      LysPheArgLeuThrThrLysPhePheGlyThrPheLeuProGluVal                               290295300305                                                                   AlaLysLysPheProAsnMetLysIleGlnIleHisValSerAlaSer                               310315320                                                                      ThrProProHisLeuSerValGlnProThrGlyLeuThrPheTyrPro                               325330335                                                                      AlaValAspValGlnAlaPheAlaValLeuProAsnSerSerLeuAla                               340345350                                                                      SerLeuPheLeuIleGlyMetHisThrThrGlySerMetGluValSer                               355360365                                                                      AlaGluSerAsnArgLeuValGlyGluLeuLysLeuAspArgLeuLeu                               370375380385                                                                   LeuGluLeuLysHisSerAsnIleGlyProPheProValGluLeuLeu                               390395400                                                                      GlnAspIleMetAsnTyrIleValProIleLeuValLeuProArgVal                               405410415                                                                      AsnGluLysLeuGlnLysGlyPheProLeuProThrProAlaArgVal                               420425430                                                                      GlnLeuTyrAsnValValLeuGlnProHisGlnAsnPheLeuLeuPhe                               435440445                                                                      GlyAlaAspValValTyrLys                                                          450455                                                                         (2) INFORMATION FOR SEQ ID NO:70:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.74"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:70:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLysLysTrp                               151015                                                                         LysAlaGlnLysArgPheLeuLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:71:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.76"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10..12                                                           (D) OTHER INFORMATION: /label=D- Phe                                           /note="The amino acid at position 11 is                                        D- phenylalanine"                                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:71:                                       IleLysIleSerGlyLysTrpLysAlaGlnPheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:72:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.77"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:72:                                       IleLysIleSerGlyLysTrpLysAlaGlnTrpArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:73:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.79"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:73:                                       IleLysIleSerGlyLysTrpLysAlaLysLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:74:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.80"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10..12                                                           (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 11 is                                           beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:74:                                       IleLysIleSerGlyLysTrpLysAlaGlnAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:75:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.81"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:75:                                       IleLysIleSerGlyLysTrpLysAlaPheLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:76:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.82"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:76:                                       LysSerLysValGlyTrpLeuIleGlnLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:77:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.83"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10..12                                                           (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:77:                                       LysSerLysValGlyAlaLysIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:78:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.84"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6..8                                                             (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:78:                                       IleLysIleSerGlyLysAlaLysAlaGlnPheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:79:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.85"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:79:                                       LysSerLysValLeuTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:80:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.86"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:80:                                       LysSerLysValGlyTrpLeuIleLeuLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:81:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.87"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:81:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheLeuLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:82:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.88"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:82:                                       IleLysIleSerGlyLysTrpLysAlaPhePheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:83:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.98"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (D) OTHER INFORMATION: /label=Substituted-Trp                                  /note="The alanine at position 2 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:83:                                       LysTrpLysAlaGlnPheArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIlePheLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:84:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.89"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6..8                                                             (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:84:                                       IleLysIleSerGlyLysAlaLysAlaPheLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:85:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.90"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6..8                                                             (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:85:                                       IleLysIleSerGlyLysAlaLysAlaPhePheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:86:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.91"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:86:                                       LysSerLysValGlyTrpLeuIlePheLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:87:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.92"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:87:                                       LysSerLysValGlyTrpLeuIleLysLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:88:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.93"                                                (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6..8                                                             (D) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is                                            beta-1- naphthyl-substituted"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:88:                                       IleLysIleSerGlyLysAlaLysAlaGlnPheArgPheLeuLysLys                               151015                                                                         SerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                        2025                                                                           (2) INFORMATION FOR SEQ ID NO:89:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.94"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:89:                                       LysSerLysValGlyTrpLeuIleGlnLeuPhePheLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:90:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.95"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:90:                                       LysSerLysValPheTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:91:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.96"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:91:                                       LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysPhe                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:92:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.97"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:92:                                       LysSerLysValLysTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:93:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 30 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.99"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:93:                                       LysTrpLysAlaGlnTrpArgPheLeuLysLysTrpLysAlaGlnTrp                               151015                                                                         ArgPheLeuLysLysTrpLysAlaGlnTrpArgPheLeuLys                                     202530                                                                         (2) INFORMATION FOR SEQ ID NO:94:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.100"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:94:                                       LysSerLysValLysTrpLeuIleLysLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:95:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.101"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:95:                                       LysSerLysValLysTrpLeuIleLysLeuPhePheLysPheLysSer                               151015                                                                         LysValLysTrpLeuIleLysLeuPhePheLysPhe                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:96:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.102"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:96:                                       LysTrpLysAlaGlnPheArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleLeuLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:97:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 1443 base pairs                                                    (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: CDS                                                              (B) LOCATION: 1..1443                                                          (ix) FEATURE:                                                                  (A) NAME/KEY: mat.sub.-- peptide                                               (B) LOCATION: 76..1443                                                         (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "rLBP"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:97:                                       ATGGGGGCCTTGGCCAGAGCCCTGCCGTCCATACTGCTGGCATTGCTG48                             MetGlyAlaLeuAlaArgAlaLeuProSerIleLeuLeuAlaLeuLeu                               25-20-15-10                                                                    CTTACGTCCACCCCAGAGGCTCTGGGTGCCAACCCCGGCTTGGTCGCC96                             LeuThrSerThrProGluAlaLeuGlyAlaAsnProGlyLeuValAla                               515                                                                            AGGATCACCGACAAGGGACTGCAGTATGCGGCCCAGGAGGGGCTATTG144                            ArgIleThrAspLysGlyLeuGlnTyrAlaAlaGlnGluGlyLeuLeu                               101520                                                                         GCTCTGCAGAGTGAGCTGCTCAGGATCACGCTGCCTGACTTCACCGGG192                            AlaLeuGlnSerGluLeuLeuArgIleThrLeuProAspPheThrGly                               253035                                                                         GACTTGAGGATCCCCCACGTCGGCCGTGGGCGCTATGAGTTCCACAGC240                            AspLeuArgIleProHisValGlyArgGlyArgTyrGluPheHisSer                               40455055                                                                       CTGAACATCCACAGCTGTGAGCTGCTTCACTCTGCGCTGAGGCCTGTC288                            LeuAsnIleHisSerCysGluLeuLeuHisSerAlaLeuArgProVal                               606570                                                                         CCTGGCCAGGGCCTGAGTCTCAGCATCTCCGACTCCTCCATCCGGGTC336                            ProGlyGlnGlyLeuSerLeuSerIleSerAspSerSerIleArgVal                               758085                                                                         CAGGGCAGGTGGAAGGTGCGCAAGTCATTCTTCAAACTACAGGGCTCC384                            GlnGlyArgTrpLysValArgLysSerPhePheLysLeuGlnGlySer                               9095100                                                                        TTTGATGTCAGTGTCAAGGGCATCAGCATTTCGGTCAACCTCCTGTTG432                            PheAspValSerValLysGlyIleSerIleSerValAsnLeuLeuLeu                               105110115                                                                      GGCAGCGAGTCCTCCGGGAGGCCCACAGTTACTGCCTCCAGCTGCAGC480                            GlySerGluSerSerGlyArgProThrValThrAlaSerSerCysSer                               120125130135                                                                   AGTGACATCGCTGACGTGGAGGTGGACATGTCGGGAGACTTGGGGTGG528                            SerAspIleAlaAspValGluValAspMetSerGlyAspLeuGlyTrp                               140145150                                                                      CTGTTGAACCTCTTCCACAACCAGATTGAGTCCAAGTTCCAGAAAGTA576                            LeuLeuAsnLeuPheHisAsnGlnIleGluSerLysPheGlnLysVal                               155160165                                                                      CTGGAGAGCAGGATTTGCGAAATGATCCAGAAATCGGTGTCCTCCGAT624                            LeuGluSerArgIleCysGluMetIleGlnLysSerValSerSerAsp                               170175180                                                                      CTACAGCCTTATCTCCAAACTCTGCCAGTTACAACAGAGATTGACAGT672                            LeuGlnProTyrLeuGlnThrLeuProValThrThrGluIleAspSer                               185190195                                                                      TTCGCCGACATTGATTATAGCTTAGTGGAAGCCCCTCGGGCAACAGCC720                            PheAlaAspIleAspTyrSerLeuValGluAlaProArgAlaThrAla                               200205210215                                                                   CAGATGCTGGAGGTGATGTTTAAGGGTGAAATCTTTCATCGTAACCAC768                            GlnMetLeuGluValMetPheLysGlyGluIlePheHisArgAsnHis                               220225230                                                                      CGTTCTCCAGTTACCCTCCTTGCTGCAGTCATGAGCCTTCCTGAGGAA816                            ArgSerProValThrLeuLeuAlaAlaValMetSerLeuProGluGlu                               235240245                                                                      CACAACAAAATGGTCTACTTTGCCATCTCGGATTATGTCTTCAACACG864                            HisAsnLysMetValTyrPheAlaIleSerAspTyrValPheAsnThr                               250255260                                                                      GCCAGCCTGGTTTATCATGAGGAAGGATATCTGAACTTCTCCATCACA912                            AlaSerLeuValTyrHisGluGluGlyTyrLeuAsnPheSerIleThr                               265270275                                                                      GATGAGATGATACCGCCTGACTCTAATATCCGACTGACCACCAAGTCC960                            AspGluMetIleProProAspSerAsnIleArgLeuThrThrLysSer                               280285290295                                                                   TTCCGACCCTTCGTCCCACGGTTAGCCAGGCTCTACCCCAACATGAAC1008                           PheArgProPheValProArgLeuAlaArgLeuTyrProAsnMetAsn                               300305310                                                                      CTGGAACTCCAGGGATCAGTGCCCTCTGCTCCGCTCCTGAACTTCAGC1056                           LeuGluLeuGlnGlySerValProSerAlaProLeuLeuAsnPheSer                               315320325                                                                      CCTGGGAATCTGTCTGTGGACCCCTATATGGAGATAGATGCCTTTGTG1104                           ProGlyAsnLeuSerValAspProTyrMetGluIleAspAlaPheVal                               330335340                                                                      CTCCTGCCCAGCTCCAGCAAGGAGCCTGTCTTCCGGCTCAGTGTGGCC1152                           LeuLeuProSerSerSerLysGluProValPheArgLeuSerValAla                               345350355                                                                      ACTAATGTGTCCGCCACCTTGACCTTCAATACCAGCAAGATCACTGGG1200                           ThrAsnValSerAlaThrLeuThrPheAsnThrSerLysIleThrGly                               360365370375                                                                   TTCCTGAAGCCAGGAAAGGTAAAAGTGGAACTGAAAGAATCCAAAGTT1248                           PheLeuLysProGlyLysValLysValGluLeuLysGluSerLysVal                               380385390                                                                      GGACTATTCAATGCAGAGCTGTTGGAAGCGCTCCTCAACTATTACATC1296                           GlyLeuPheAsnAlaGluLeuLeuGluAlaLeuLeuAsnTyrTyrIle                               395400405                                                                      CTTAACACCTTCTACCCCAAGTTCAATGATAAGTTGGCCGAAGGCTTC1344                           LeuAsnThrPheTyrProLysPheAsnAspLysLeuAlaGluGlyPhe                               410415420                                                                      CCCCTTCCTCTGCTGAAGCGTGTTCAGCTCTACGACCTTGGGCTGCAG1392                           ProLeuProLeuLeuLysArgValGlnLeuTyrAspLeuGlyLeuGln                               425430435                                                                      ATCCATAAGGACTTCCTGTTCTTGGGTGCCAATGTCCAATACATGAGA1440                           IleHisLysAspPheLeuPheLeuGlyAlaAsnValGlnTyrMetArg                               440445450455                                                                   GTT1443                                                                        Val                                                                            (2) INFORMATION FOR SEQ ID NO:98:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 481 amino acids                                                    (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: protein                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "rLBP"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:98:                                       MetGlyAlaLeuAlaArgAlaLeuProSerIleLeuLeuAlaLeuLeu                               25-20-15-10                                                                    LeuThrSerThrProGluAlaLeuGlyAlaAsnProGlyLeuValAla                               515                                                                            ArgIleThrAspLysGlyLeuGlnTyrAlaAlaGlnGluGlyLeuLeu                               101520                                                                         AlaLeuGlnSerGluLeuLeuArgIleThrLeuProAspPheThrGly                               253035                                                                         AspLeuArgIleProHisValGlyArgGlyArgTyrGluPheHisSer                               40455055                                                                       LeuAsnIleHisSerCysGluLeuLeuHisSerAlaLeuArgProVal                               606570                                                                         ProGlyGlnGlyLeuSerLeuSerIleSerAspSerSerIleArgVal                               758085                                                                         GlnGlyArgTrpLysValArgLysSerPhePheLysLeuGlnGlySer                               9095100                                                                        PheAspValSerValLysGlyIleSerIleSerValAsnLeuLeuLeu                               105110115                                                                      GlySerGluSerSerGlyArgProThrValThrAlaSerSerCysSer                               120125130135                                                                   SerAspIleAlaAspValGluValAspMetSerGlyAspLeuGlyTrp                               140145150                                                                      LeuLeuAsnLeuPheHisAsnGlnIleGluSerLysPheGlnLysVal                               155160165                                                                      LeuGluSerArgIleCysGluMetIleGlnLysSerValSerSerAsp                               170175180                                                                      LeuGlnProTyrLeuGlnThrLeuProValThrThrGluIleAspSer                               185190195                                                                      PheAlaAspIleAspTyrSerLeuValGluAlaProArgAlaThrAla                               200205210215                                                                   GlnMetLeuGluValMetPheLysGlyGluIlePheHisArgAsnHis                               220225230                                                                      ArgSerProValThrLeuLeuAlaAlaValMetSerLeuProGluGlu                               235240245                                                                      HisAsnLysMetValTyrPheAlaIleSerAspTyrValPheAsnThr                               250255260                                                                      AlaSerLeuValTyrHisGluGluGlyTyrLeuAsnPheSerIleThr                               265270275                                                                      AspGluMetIleProProAspSerAsnIleArgLeuThrThrLysSer                               280285290295                                                                   PheArgProPheValProArgLeuAlaArgLeuTyrProAsnMetAsn                               300305310                                                                      LeuGluLeuGlnGlySerValProSerAlaProLeuLeuAsnPheSer                               315320325                                                                      ProGlyAsnLeuSerValAspProTyrMetGluIleAspAlaPheVal                               330335340                                                                      LeuLeuProSerSerSerLysGluProValPheArgLeuSerValAla                               345350355                                                                      ThrAsnValSerAlaThrLeuThrPheAsnThrSerLysIleThrGly                               360365370375                                                                   PheLeuLysProGlyLysValLysValGluLeuLysGluSerLysVal                               380385390                                                                      GlyLeuPheAsnAlaGluLeuLeuGluAlaLeuLeuAsnTyrTyrIle                               395400405                                                                      LeuAsnThrPheTyrProLysPheAsnAspLysLeuAlaGluGlyPhe                               410415420                                                                      ProLeuProLeuLeuLysArgValGlnLeuTyrAspLeuGlyLeuGln                               425430435                                                                      IleHisLysAspPheLeuPheLeuGlyAlaAsnValGlnTyrMetArg                               440445450455                                                                   Val                                                                            (2) INFORMATION FOR SEQ ID NO:99:                                              (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 16 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.57"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:99:                                       CysIleLysIleSerGlyLysTrpLysAlaGlnLysArgProLeuCys                               151015                                                                         (2) INFORMATION FOR SEQ ID NO:100:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.75"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:100:                                      IleLysLysArgAlaIleSerPheLeuGlyLysLysTrpGlnLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:101:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.282"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:101:                                      LysTrpLysAlaPhePheArgPheLeuLysLysTrpLysAlaPhePhe                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:102:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 16 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.103"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:102:                                      IleLysIleSerGlyLysTrpLysAlaTrpLysArgPheLeuLysLys                               151015                                                                         (2) INFORMATION FOR SEQ ID NO:103:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.104"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:103:                                      LysSerLysValGlyTrpLeuIleSerLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:104:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 16 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.105"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 13                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 13 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:104:                                      IleLysIleSerGlyLysTrpLysAlaTrpLysArgAlaLeuLysLys                               151015                                                                         (2) INFORMATION FOR SEQ ID NO:105:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.106"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:105:                                      LysSerLysValGlyTrpLeuIleThrLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:106:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.107"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:106:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheTrpLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:107:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.108"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:107:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysTrp                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:108:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.109"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 11                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 11 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:108:                                      LysSerLysValGlyTrpLeuIleGlnLeuAlaHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:109:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.110"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 12 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:109:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:110:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.111"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 14 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:110:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:111:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.112"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 7                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is beta-1-                                    naphthyl- substituted."                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 11                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 11 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:111:                                      IleLysIleSerGlyLysAlaLysAlaGlnAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:112:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.113"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:112:                                      LysSerLysValGlyTrpLeuIleGlnPhePheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:113:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.114"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:113:                                      LysTrpGlnLeuArgSerLysGlyLysIleLysIlePheLysAla                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:114:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.116"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is beta-1-                                    naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:114:                                      LysSerLysValLysAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:115:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.119"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 7                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is beta-1-                                    naphthyl- substituted."                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:115:                                      IleLysIleSerGlyLysAlaLysAlaAlaLysArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:116:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.120"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:116:                                      IleLysIleSerGlyLysTrpLysAlaGlnLysArgLysLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:117:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.121"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is beta-1-                                   naphthyl- substituted."                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 11                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 11 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:117:                                      IleLysIleSerGlyLysTrpLysAlaAlaAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:118:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.122"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 7                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 7 is beta-1-                                    naphthyl- substituted."                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is beta-1-                                   naphthyl- substituted."                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 11                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 11 is beta-1-                                   naphthyl- substituted."                                                        (xi) SEQUENCE DESCRIPTION: SEQ ID NO:118:                                      IleLysIleSerGlyLysAlaLysAlaAlaAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:119:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.123"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="The phenylalanine at position 9 is                                      p-amino- substituted."                                                         (xi) SEQUENCE DESCRIPTION: SEQ ID NO:119:                                      LysSerLysValGlyTrpLeuIlePheLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:120:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.124"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:120:                                      LysSerLysValLysTrpLeuIleGlnLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:121:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.125"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:121:                                      LysSerLysValGlyTrpLeuIleTyrLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:122:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.126"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=D- Trp                                           /note="The amino acid at position 6 is                                         D- tryptophan."                                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:122:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:123:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.127"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:123:                                      LysSerLysValGlyPheLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:124:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.128"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=D- Phe                                           /note="The amino acid at position 6 is                                         D- phenylalanine."                                                             (xi) SEQUENCE DESCRIPTION: SEQ ID NO:124:                                      LysSerLysValGlyPheLeuIleGlnLeuProHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:125:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.129"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            D-1-beta-1- naphthyl-                                                          substituted."                                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:125:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:126:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.130"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            2-beta-1- naphthyl-                                                            substituted."                                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:126:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:127:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.131"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            D-2-beta-1- naphthyl-                                                          substituted."                                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:127:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:128:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.132"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            pyridyl- substituted."                                                         (xi) SEQUENCE DESCRIPTION: SEQ ID NO:128:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:129:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.133"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="The phenylalanine at position 6 is                                      para-amino-                                                                    substituted."                                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:129:                                      LysSerLysValGlyPheLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:130:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.134"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="The phenylalanine at position 5 is                                      para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:130:                                      LysSerLysValPheTrpLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:131:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.135"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:131:                                      LysSerLysValGlyLysLeuIleGlnLeuProHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:132:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.136"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:132:                                      IleLysIleSerGlyLysTrpLysAlaGlnGluArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:133:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 16 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.137"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:133:                                      CysLysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLysCys                               151015                                                                         (2) INFORMATION FOR SEQ ID NO:134:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.138"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:134:                                      LysSerLysValLysPheLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:135:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.139"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:135:                                      LysSerLysValGlyTyrLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:136:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 7 amino acids                                                      (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.140"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 1                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 1 is                                            beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 2 is                                            beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:136:                                      AlaAlaArgPheLeuLysPhe                                                          15                                                                             (2) INFORMATION FOR SEQ ID NO:137:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.141"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:137:                                      IleLysIleSerGlyLysTrpLysAlaGlnLysArgTrpLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:138:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.142"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:138:                                      LysSerLysValGlyTrpLeuIleGlnTrpPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:139:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.143"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:139:                                      LysSerLysValGlyTrpLeuIleGlnAlaPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:140:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.144"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            cyclohexyl- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:140:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:141:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.145"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:141:                                      LysTrpLysAlaAlaAlaArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:142:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.146"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 12 is                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 14 is                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:142:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheAlaLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:143:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.147"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:143:                                      IleLysIleSerGlyLysTrpLysAlaGluLysLysPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:144:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.148"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 6 is                                            beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 12 is                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:144:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:145:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 1813 base pairs                                                    (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: cDNA                                                       (ix) FEATURE:                                                                  (A) NAME/KEY: CDS                                                              (B) LOCATION: 31..1491                                                         (ix) FEATURE:                                                                  (A) NAME/KEY: mat.sub.-- peptide                                               (B) LOCATION: 124..1491                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "rBPI"                                                  (xi) SEQUENCE DESCRIPTION: SEQ ID NO:145:                                      CAGGCCTTGAGGTTTTGGCAGCTCTGGAGGATGAGAGAGAACATGGCCAGGGGC54                       MetArgGluAsnMetAlaArgGly                                                       31-30-25                                                                       CCTTGCAACGCGCCGAGATGGGTGTCCCTGATGGTGCTCGTCGCCATA102                            ProCysAsnAlaProArgTrpValSerLeuMetValLeuValAlaIle                               20-15- 10                                                                      GGCACCGCCGTGACAGCGGCCGTCAACCCTGGCGTCGTGGTCAGGATC150                            GlyThrAlaValThrAlaAlaValAsnProGlyValValValArgIle                               515                                                                            TCCCAGAAGGGCCTGGACTACGCCAGCCAGCAGGGGACGGCCGCTCTG198                            SerGlnLysGlyLeuAspTyrAlaSerGlnGlnGlyThrAlaAlaLeu                               10152025                                                                       CAGAAGGAGCTGAAGAGGATCAAGATTCCTGACTACTCAGACAGCTTT246                            GlnLysGluLeuLysArgIleLysIleProAspTyrSerAspSerPhe                               303540                                                                         AAGATCAAGCATCTTGGGAAGGGGCATTATAGCTTCTACAGCATGGAC294                            LysIleLysHisLeuGlyLysGlyHisTyrSerPheTyrSerMetAsp                               455055                                                                         ATCCGTGAATTCCAGCTTCCCAGTTCCCAGATAAGCATGGTGCCCAAT342                            IleArgGluPheGlnLeuProSerSerGlnIleSerMetValProAsn                               606570                                                                         GTGGGCCTTAAGTTCTCCATCAGCAACGCCAATATCAAGATCAGCGGG390                            ValGlyLeuLysPheSerIleSerAsnAlaAsnIleLysIleSerGly                               758085                                                                         AAATGGAAGGCACAAAAGAGATTCTTAAAAATGAGCGGCAATTTTGAC438                            LysTrpLysAlaGlnLysArgPheLeuLysMetSerGlyAsnPheAsp                               9095100105                                                                     CTGAGCATAGAAGGCATGTCCATTTCGGCTGATCTGAAGCTGGGCAGT486                            LeuSerIleGluGlyMetSerIleSerAlaAspLeuLysLeuGlySer                               110115120                                                                      AACCCCACGTCAGGCAAGCCCACCATCACCTGCTCCAGCTGCAGCAGC534                            AsnProThrSerGlyLysProThrIleThrCysSerSerCysSerSer                               125130135                                                                      CACATCAACAGTGTCCACGTGCACATCTCAAAGAGCAAAGTCGGGTGG582                            HisIleAsnSerValHisValHisIleSerLysSerLysValGlyTrp                               140145150                                                                      CTGATCCAACTCTTCCACAAAAAAATTGAGTCTGCGCTTCGAAACAAG630                            LeuIleGlnLeuPheHisLysLysIleGluSerAlaLeuArgAsnLys                               155160165                                                                      ATGAACAGCCAGGTCTGCGAGAAAGTGACCAATTCTGTATCCTCCAAG678                            MetAsnSerGlnValCysGluLysValThrAsnSerValSerSerLys                               170175180185                                                                   CTGCAACCTTATTTCCAGACTCTGCCAGTAATGACCAAAATAGATTCT726                            LeuGlnProTyrPheGlnThrLeuProValMetThrLysIleAspSer                               190195200                                                                      GTGGCTGGAATCAACTATGGTCTGGTGGCACCTCCAGCAACCACGGCT774                            ValAlaGlyIleAsnTyrGlyLeuValAlaProProAlaThrThrAla                               205210215                                                                      GAGACCCTGGATGTACAGATGAAGGGGGAGTTTTACAGTGAGAACCAC822                            GluThrLeuAspValGlnMetLysGlyGluPheTyrSerGluAsnHis                               220225230                                                                      CACAATCCACCTCCCTTTGCTCCACCAGTGATGGAGTTTCCCGCTGCC870                            HisAsnProProProPheAlaProProValMetGluPheProAlaAla                               235240245                                                                      CATGACCGCATGGTATACCTGGGCCTCTCAGACTACTTCTTCAACACA918                            HisAspArgMetValTyrLeuGlyLeuSerAspTyrPhePheAsnThr                               250255260265                                                                   GCCGGGCTTGTATACCAAGAGGCTGGGGTCTTGAAGATGACCCTTAGA966                            AlaGlyLeuValTyrGlnGluAlaGlyValLeuLysMetThrLeuArg                               270275280                                                                      GATGACATGATTCCAAAGGAGTCCAAATTTCGACTGACAACCAAGTTC1014                           AspAspMetIleProLysGluSerLysPheArgLeuThrThrLysPhe                               285290295                                                                      TTTGGAACCTTCCTACCTGAGGTGGCCAAGAAGTTTCCCAACATGAAG1062                           PheGlyThrPheLeuProGluValAlaLysLysPheProAsnMetLys                               300305310                                                                      ATACAGATCCATGTCTCAGCCTCCACCCCGCCACACCTGTCTGTGCAG1110                           IleGlnIleHisValSerAlaSerThrProProHisLeuSerValGln                               315320325                                                                      CCCACCGGCCTTACCTTCTACCCTGCCGTGGATGTCCAGGCCTTTGCC1158                           ProThrGlyLeuThrPheTyrProAlaValAspValGlnAlaPheAla                               330335340345                                                                   GTCCTCCCCAACTCCTCCCTGGCTTCCCTCTTCCTGATTGGCATGCAC1206                           ValLeuProAsnSerSerLeuAlaSerLeuPheLeuIleGlyMetHis                               350355360                                                                      ACAACTGGTTCCATGGAGGTCAGCGCCGAGTCCAACAGGCTTGTTGGA1254                           ThrThrGlySerMetGluValSerAlaGluSerAsnArgLeuValGly                               365370375                                                                      GAGCTCAAGCTGGATAGGCTGCTCCTGGAACTGAAGCACTCAAATATT1302                           GluLeuLysLeuAspArgLeuLeuLeuGluLeuLysHisSerAsnIle                               380385390                                                                      GGCCCCTTCCCGGTTGAATTGCTGCAGGATATCATGAACTACATTGTA1350                           GlyProPheProValGluLeuLeuGlnAspIleMetAsnTyrIleVal                               395400405                                                                      CCCATTCTTGTGCTGCCCAGGGTTAACGAGAAACTACAGAAAGGCTTC1398                           ProIleLeuValLeuProArgValAsnGluLysLeuGlnLysGlyPhe                               410415420425                                                                   CCTCTCCCGACGCCGGCCAGAGTCCAGCTCTACAACGTAGTGCTTCAG1446                           ProLeuProThrProAlaArgValGlnLeuTyrAsnValValLeuGln                               430435440                                                                      CCTCACCAGAACTTCCTGCTGTTCGGTGCAGACGTTGTCTATAAA1491                              ProHisGlnAsnPheLeuLeuPheGlyAlaAspValValTyrLys                                  445450455                                                                      TGAAGGCACCAGGGGTGCCGGGGGCTGTCAGCCGCACCTGTTCCTGATGGGCTGTGGGGC1551               ACCGGCTGCCTTTCCCCAGGGAATCCTCTCCAGATCTTAACCAAGAGCCCCTTGCAAACT1611               TCTTCGACTCAGATTCAGAAATGATCTAAACACGAGGAAACATTATTCATTGGAAAAGTG1671               CATGGTGTGTATTTTAGGGATTATGAGCTTCTTTCAAGGGCTAAGGCTGCAGAGATATTT1731               CCTCCAGGAATCGTGTTTCAATTGTAACCAAGAAATTTCCATTTGTGCTTCATGAAAAAA1791               AACTTCTGGTTTTTTTCATGTG1813                                                     (2) INFORMATION FOR SEQ ID NO:146:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 487 amino acids                                                    (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: protein                                                    (xi) SEQUENCE DESCRIPTION: SEQ ID NO:146:                                      MetArgGluAsnMetAlaArgGlyProCysAsnAlaProArgTrpVal                               31-30-25-20                                                                    SerLeuMetValLeuValAlaIleGlyThrAlaValThrAlaAlaVal                               15-10-51                                                                       AsnProGlyValValValArgIleSerGlnLysGlyLeuAspTyrAla                               51015                                                                          SerGlnGlnGlyThrAlaAlaLeuGlnLysGluLeuLysArgIleLys                               202530                                                                         IleProAspTyrSerAspSerPheLysIleLysHisLeuGlyLysGly                               354045                                                                         HisTyrSerPheTyrSerMetAspIleArgGluPheGlnLeuProSer                               50556065                                                                       SerGlnIleSerMetValProAsnValGlyLeuLysPheSerIleSer                               707580                                                                         AsnAlaAsnIleLysIleSerGlyLysTrpLysAlaGlnLysArgPhe                               859095                                                                         LeuLysMetSerGlyAsnPheAspLeuSerIleGluGlyMetSerIle                               100105110                                                                      SerAlaAspLeuLysLeuGlySerAsnProThrSerGlyLysProThr                               115120125                                                                      IleThrCysSerSerCysSerSerHisIleAsnSerValHisValHis                               130135140145                                                                   IleSerLysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                               150155160                                                                      IleGluSerAlaLeuArgAsnLysMetAsnSerGlnValCysGluLys                               165170175                                                                      ValThrAsnSerValSerSerLysLeuGlnProTyrPheGlnThrLeu                               180185190                                                                      ProValMetThrLysIleAspSerValAlaGlyIleAsnTyrGlyLeu                               195200205                                                                      ValAlaProProAlaThrThrAlaGluThrLeuAspValGlnMetLys                               210215220225                                                                   GlyGluPheTyrSerGluAsnHisHisAsnProProProPheAlaPro                               230235240                                                                      ProValMetGluPheProAlaAlaHisAspArgMetValTyrLeuGly                               245250255                                                                      LeuSerAspTyrPhePheAsnThrAlaGlyLeuValTyrGlnGluAla                               260265270                                                                      GlyValLeuLysMetThrLeuArgAspAspMetIleProLysGluSer                               275280285                                                                      LysPheArgLeuThrThrLysPhePheGlyThrPheLeuProGluVal                               290295300305                                                                   AlaLysLysPheProAsnMetLysIleGlnIleHisValSerAlaSer                               310315320                                                                      ThrProProHisLeuSerValGlnProThrGlyLeuThrPheTyrPro                               325330335                                                                      AlaValAspValGlnAlaPheAlaValLeuProAsnSerSerLeuAla                               340345350                                                                      SerLeuPheLeuIleGlyMetHisThrThrGlySerMetGluValSer                               355360365                                                                      AlaGluSerAsnArgLeuValGlyGluLeuLysLeuAspArgLeuLeu                               370375380385                                                                   LeuGluLeuLysHisSerAsnIleGlyProPheProValGluLeuLeu                               390395400                                                                      GlnAspIleMetAsnTyrIleValProIleLeuValLeuProArgVal                               405410415                                                                      AsnGluLysLeuGlnLysGlyPheProLeuProThrProAlaArgVal                               420425430                                                                      GlnLeuTyrAsnValValLeuGlnProHisGlnAsnPheLeuLeuPhe                               435440445                                                                      GlyAlaAspValValTyrLys                                                          450455                                                                         (2) INFORMATION FOR SEQ ID NO:147:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.149"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:147:                                      LysTrpLysValPheLysLysIleGluLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:148:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.150"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:148:                                      LysTrpAlaPheAlaLysLysGlnLysLysArgLeuLysArgGlnTrp                               151015                                                                         LeuLysLysPhe                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:149:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 30 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.153"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:149:                                      LysTrpLysAlaGlnLysArgPheLeuLysLysTrpLysAlaGlnLys                               151015                                                                         ArgPheLeuLysLysTrpLysAlaGlnLysArgPheLeuLys                                     202530                                                                         (2) INFORMATION FOR SEQ ID NO:150:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.154"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 5 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:150:                                      LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaGlnLys                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:151:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.155"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 15                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 15 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:151:                                      LysTrpLysAlaGlnLysArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:152:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.156"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 5 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 15                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 15 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:152:                                      LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:153:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 30 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.157"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 5 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 15                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 15 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 25                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 25 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 26                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 26 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:153:                                      LysTrpLysAlaAlaAlaArgPheLeuLysLysTrpLysAlaAlaAla                               151015                                                                         ArgPheLeuLysLysTrpLysAlaAlaAlaArgPheLeuLys                                     202530                                                                         (2) INFORMATION FOR SEQ ID NO:154:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.158"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 11                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 11 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:154:                                      IleLysIleSerGlyLysTrpLysAlaAlaAlaArgPheLeuLysLys                               151015                                                                         SerLysValGlyTrpLeuIleGlnLeuPheHisLysLys                                        2025                                                                           (2) INFORMATION FOR SEQ ID NO:155:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.159"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 2 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:155:                                      LysAlaLysAlaGlnAlaArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuTrpHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:156:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.160"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 2 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:156:                                      LysAlaLysAlaGlnAlaArgPheLeuLysLysAlaLysAlaGlnAla                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:157:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.161"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:157:                                      LysSerLysValLysAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:158:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.162"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:158:                                      LysTrpLysAlaGlnTrpArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:159:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.163"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:159:                                      LysTrpLysAlaGlnTrpArgPheLeuLysLysTrpLysAlaGlnTrp                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:160:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.164"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 5 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 15                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 15 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:160:                                      LysTrpLysAlaAlaLysArgPheLeuLysLysTrpLysAlaAlaLys                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:161:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.165"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 2 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:161:                                      LysAlaLysAlaGlnPheArgPheLeuLysLysAlaLysAlaGlnPhe                               151015                                                                         ArgPheLeuLys                                                                   20                                                                             (2) INFORMATION FOR SEQ ID NO:162:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.166"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:162:                                      LysSerLysValGlyValLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:163:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 8 amino acids                                                      (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.167"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:163:                                      LysTrpLysAlaGlnLysArgPhe                                                       15                                                                             (2) INFORMATION FOR SEQ ID NO:164:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: circular                                                         (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.168"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:164:                                      CysLysTrpLysAlaGlnLysArgPheLeuLysMetSerCys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:165:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 10 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: circular                                                         (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.169"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:165:                                      CysLysTrpLysAlaGlnLysArgPheCys                                                 1510                                                                           (2) INFORMATION FOR SEQ ID NO:166:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.221"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 13                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 13 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:166:                                      IleLysIleSerGlyLysTrpLysAlaGlnLysArgAlaLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:167:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.222"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 14 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:167:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:168:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.223"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:168:                                      LysSerLysValGlyAlaLeuIleGlnAlaPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:169:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.224"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:169:                                      LysSerLysValGlyAlaLeuIlePheLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:170:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.225"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:170:                                      LysSerLysValPheAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:171:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.226"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:171:                                      LysSerLysValGlyAlaLeuIleGlnLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:172:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.227"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 14 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:172:                                      LysSerLysValGlyTrpLeuIleGlnAlaPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:173:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.228"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 14 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:173:                                      LysSerLysValGlyTrpLeuIlePheLeuPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:174:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.229"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 14 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:174:                                      LysSerLysValPheTrpLeuIleGlnLeuPheHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:175:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.230"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 14                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 14 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:175:                                      LysSerLysValGlyTrpLeuIleGlnLeuTrpHisLysAla                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:176:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.231"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:176:                                      LysSerLysValGlyTrpLeuIleGlnAlaPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:177:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.232"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:177:                                      LysSerLysValGlyTrpLeuIlePheLeuPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:178:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.233"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:178:                                      LysSerLysValPheTrpLeuIleGlnLeuPheAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:179:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.234"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 12                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 12 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:179:                                      LysSerLysValGlyTrpLeuIleGlnLeuTrpAlaLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:180:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.235"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:180:                                      LysSerLysValGlyTrpLeuIlePheAlaPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:181:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.236"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:181:                                      LysSerLysValPheTrpLeuIleGlnAlaPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:182:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.237"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 10 is                                                          beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:182:                                      LysSerLysValGlyTrpLeuIleGlnAlaTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:183:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.238"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:183:                                      LysSerLysValPheTrpLeuIlePheLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:184:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.239"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 9                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 9 is                                                           para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:184:                                      LysSerLysValGlyTrpLeuIlePheLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:185:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.240"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 5                                                                (C) OTHER INFORMATION: /label=Substituted-Phe                                  /note="Position 5 is                                                           para-amino- substituted."                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:185:                                      LysSerLysValPheTrpLeuIleGlnLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:186:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.247"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 2 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:186:                                      LysAlaLysAlaGlnAlaArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleLeuLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:187:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.245"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:187:                                      LysTrpLysAlaGlnPheArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleGlnLeuTrpHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:188:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.246"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          D-beta-2- naphthyl-substituted."                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:188:                                      LysTrpLysAlaGlnPheArgPheLeuLysLysSerLysValGlyAla                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:189:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.248"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 2 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           beta-1- naphthyl-substituted."                                                 (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 16                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 16 is                                                          D-beta-2- naphthyl-substituted."                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:189:                                      LysAlaLysAlaGlnAlaArgPheLeuLysLysSerLysValGlyAla                               151015                                                                         LeuIleGlnLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:190:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.242"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           D-beta-2- naphthyl-substituted."                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:190:                                      LysSerLysValGlyAlaLeuIleLeuLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:191:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.272"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:191:                                      LysSerLysValGlyTrpLeuIleLeuLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIleLeuLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:192:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.275"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:192:                                      LysSerLysValGlyTrpLeuIlePheLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIlePheLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:193:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.270"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:193:                                      LysSerLysValGlyTrpLeuIleLeuLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIleGlnLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:194:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.271"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:194:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIleLeuLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:195:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.273"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:195:                                      LysSerLysValGlyTrpLeuIlePheLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIleGlnLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:196:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 28 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.274"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:196:                                      LysSerLysValGlyTrpLeuIleGlnLeuPheHisLysLysLysSer                               151015                                                                         LysValGlyTrpLeuIlePheLeuPheHisLysLys                                           2025                                                                           (2) INFORMATION FOR SEQ ID NO:197:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.276"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:197:                                      LysTrpLysAlaGlnPheArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIlePheLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:198:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.241"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:198:                                      LysSerLysValGlyTrpLeuIleLeuLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:199:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.243"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           D-beta-2- naphthyl-substituted."                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:199:                                      LysSerLysValGlyAlaLeuIleGlnLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:200:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.244"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="Position 6 is                                                           D-beta-2- naphthyl-substituted."                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:200:                                      LysSerLysValGlyAlaLeuIleLeuLeuTrpHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:201:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.249"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:201:                                      LysSerLysValGlyGlyLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:202:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.250"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:202:                                      LysSerLysValGlyLeuLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:203:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.251"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:203:                                      LysSerLysValGlyIleLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:204:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.252"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=D- Ala                                           /note="The amino acid at position 6 is                                         D-alanine"                                                                     (xi) SEQUENCE DESCRIPTION: SEQ ID NO:204:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:205:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.253"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=D- Val                                           /note="The amino acid at position 6 is                                         D-valine"                                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:205:                                      LysSerLysValGlyValLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:206:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.254"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=beta-Ala                                         /note="The amino acid at position 6 is                                         beta- alanine"                                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:206:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:207:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.255"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=delta-aba                                        /note="The amino acid at position 6 is                                         delta- aminobutyric acid"                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:207:                                      LysSerLysValGlyXaaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:208:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.256"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=gaba                                             /note="The amino acid at position 6 is                                         gamma- aminobutyric acid"                                                      (xi) SEQUENCE DESCRIPTION: SEQ ID NO:208:                                      LysSerLysValGlyXaaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:209:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.257"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=d- methyl-A                                      /note="The amino acid at position 6 is                                         delta-Methyl- alanine"                                                         (xi) SEQUENCE DESCRIPTION: SEQ ID NO:209:                                      LysSerLysValGlyAlaLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:210:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.258"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=t- butyl-G                                       /note="The amino acid at position 6 is                                         tert-butyl- glycine"                                                           (xi) SEQUENCE DESCRIPTION: SEQ ID NO:210:                                      LysSerLysValGlyGlyLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:211:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.259"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=N- methyl-G                                      /note="The amino acid at position 6 is                                         N-Methyl- glycine"                                                             (xi) SEQUENCE DESCRIPTION: SEQ ID NO:211:                                      LysSerLysValGlyGlyLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:212:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.260"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=N- methyl-V                                      /note="The amino acid at position 6 is                                         N-Methyl- valine"                                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:212:                                      LysSerLysValGlyValLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:213:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.261"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 6                                                                (D) OTHER INFORMATION: /label=N- methyl-L                                      /note="The amino acid at position 6 is                                         N-Methyl- leucine"                                                             (xi) SEQUENCE DESCRIPTION: SEQ ID NO:213:                                      LysSerLysValGlyLeuLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:214:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.262"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:214:                                      LysSerLysValGlyTrpLeuIleAsnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:215:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.263"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:215:                                      LysSerLysValGlyTrpLeuIleGluLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:216:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.264"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:216:                                      LysSerLysValGlyTrpLeuIleAspLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:217:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.265"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:217:                                      LysSerLysValGlyTrpLeuIleLysLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:218:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.266"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:218:                                      LysSerLysValLysValLeuIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:219:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.267"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:219:                                      LysSerLysValLysTrpAlaIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:220:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.268"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:220:                                      LysSerLysValGlyValAlaIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:221:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 14 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.269"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:221:                                      LysSerLysValLysValAlaIleGlnLeuPheHisLysLys                                     1510                                                                           (2) INFORMATION FOR SEQ ID NO:222:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 24 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.277"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 2                                                                (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 2 is                                            beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:222:                                      LysAlaLysAlaGlnPheArgPheLeuLysLysSerLysValGlyTrp                               151015                                                                         LeuIleLeuLeuPheHisLysLys                                                       20                                                                             (2) INFORMATION FOR SEQ ID NO:223:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.278"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:223:                                      IleLysIleSerGlyLysTrpLysAlaAlaTrpArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:224:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.279"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:224:                                      IleLysIleSerGlyLysTrpLysAlaAlaPheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:225:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.280"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:225:                                      IleLysIleSerGlyLysTrpLysAlaAlaPheArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:226:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 15 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.281"                                               (ix) FEATURE:                                                                  (A) NAME/KEY: Modified-site                                                    (B) LOCATION: 10                                                               (C) OTHER INFORMATION: /label=Substituted-Ala                                  /note="The alanine at position 10 is                                           beta-1- naphthyl-substituted."                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:226:                                      IleLysIleSerGlyLysTrpLysAlaAlaAlaArgPheLeuLys                                  151015                                                                         (2) INFORMATION FOR SEQ ID NO:227:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 12 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "XMP.170"                                               (xi) SEQUENCE DESCRIPTION: SEQ ID NO:227:                                      LysTrpLysAlaGlnLysArgPheLeuLysMetSer                                           1510                                                                           (2) INFORMATION FOR SEQ ID NO:228:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 21 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP-10"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:228:                                      GAGATCGATAGTTTCGCCGAC21                                                        (2) INFORMATION FOR SEQ ID NO:229:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP-11"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:229:                                      ACTATCGATCTCTGTTGTAA20                                                         (2) INFORMATION FOR SEQ ID NO:230:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 29 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP- BSM"                                              (xi) SEQUENCE DESCRIPTION: SEQ ID NO:230:                                      GAATGCAGCCAACCCCGGCTTGGTCGCCA29                                                (2) INFORMATION FOR SEQ ID NO:231:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 18 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP-8"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:231:                                      CTGGCTAACCGTGGGACG18                                                           (2) INFORMATION FOR SEQ ID NO:232:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "BPI-63"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:232:                                      AAAATCGATTCTGTGGCTGG20                                                         (2) INFORMATION FOR SEQ ID NO:233:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 20 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "BPI-64"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:233:                                      AGAATCGATTTTGGTCATTA20                                                         (2) INFORMATION FOR SEQ ID NO:234:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 18 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "BPI-40"                                                (xi) SEQUENCE DESCRIPTION: SEQ ID NO:234:                                      TGATCTGAAGCTGGGCAG18                                                           (2) INFORMATION FOR SEQ ID NO:235:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 18 base pairs                                                      (B) TYPE: nucleic acid                                                         (C) STRANDEDNESS: single                                                       (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: DNA                                                        (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "BPI-7"                                                 (xi) SEQUENCE DESCRIPTION: SEQ ID NO:235:                                      GAACTTGGTTGTCAGTCG18                                                           (2) INFORMATION FOR SEQ ID NO:236:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 27 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP Peptide 1-2"                                       (xi) SEQUENCE DESCRIPTION: SEQ ID NO:236:                                      GlyGlnGlyLeuSerLeuSerIleSerAspSerSerIleArgValGln                               151015                                                                         GlyArgTrpLysValArgLysSerPhePheLys                                              2025                                                                           (2) INFORMATION FOR SEQ ID NO:237:                                             (i) SEQUENCE CHARACTERISTICS:                                                  (A) LENGTH: 22 amino acids                                                     (B) TYPE: amino acid                                                           (D) TOPOLOGY: linear                                                           (ii) MOLECULE TYPE: peptide                                                    (ix) FEATURE:                                                                  (A) NAME/KEY: misc.sub.-- feature                                              (D) OTHER INFORMATION: "LBP Peptide 2-1"                                       (xi) SEQUENCE DESCRIPTION: SEQ ID NO:237:                                      AspValGluValAspMetSerGlyAspLeuGlyTrpLeuLeuAsnLeu                               151015                                                                         PheHisAsnGlnIleGlu                                                             20                                                                             __________________________________________________________________________ 

What is claimed are:
 1. A method of treating a BPI-susceptible gram-positive bacterial infection comprising the step of administering to a subject suffering from a BPI-susceptible gram-positive bacterial infection a BPI protein product in an amount sufficient for monotherapeutic effectiveness.
 2. The method of claim 1 wherein the BPI protein product is administered at a dose of from 1 μg/kg/day to 100 mg/kg/day.
 3. The method of claim 2 wherein the BPI protein product is administered at a dose of from 1 mg/kg/day to 20 mg/kg/day.
 4. A method of killing or inhibiting growth of BPI-susceptible gram-positive bacteria in vitro comprising contacting the bacteria with a BPI protein product.
 5. A method of killing or inhibiting growth of gram-positive bacteria in vitro comprising contacting the bacteria with a BPI protein product and one or more antibacterial agents.
 6. A method of killing or inhibiting growth of Mycoplasma comprising contacting the Mycoplasma with a BPI protein product.
 7. The method of claim 6 further comprising contacting the Mycoplasma with antibiotic.
 8. In a method of treating a subject suffering from a gram-positive bacterial infection by administering one or more antibiotics, the improvement comprising concurrently administering a BPI protein product in an amount effective to increase antibiotic susceptibility of a gram-positive bacterial species involved in the infection.
 9. The method of claim 8 wherein the BPI protein product is administered at a dose of from 1 μg/kg/day to 100 mg/kg/day.
 10. The method of claim 8 wherein the BPI protein product is administered at a dose of from 1 mg/kg/day to 20 mg/kg/day.
 11. In a method of treating a subject suffering from a gram-positive bacterial infection by administering one or more antibiotics, the improvement comprising concurrently administering a BPI protein product in an amount effective to reverse antibiotic resistance of a gram-positive bacterial species involved in the infection.
 12. The method of claim 11 wherein the BPI protein product is administered at a dose of from 1 μg/kg/day to 100 mg/kg/day.
 13. The method of claim 11 wherein the BPI protein product is administered at a dose of from 1 mg/kg/day to 20 mg/kg/day. 